Mineral Groups

Adelite GroupOrthorhombic arsenates and vanadates of general formula AB2+(XO4)(OH), A = Ca, Pb;B2+ = Co, Cu, Fe, Mg, Ni, Zn; X = As5+, V5+.

Adelite CaMg(AsO4)(OH)Austinite CaZn(AsO4)(OH)Calciovolborthite CaCu(VO4)(OH) (needs study)CobaltaustiniteCa(Co,Cu2+)(AsO4)(OH)Conichalcite CaCu2+(AsO4)(OH)Duftite PbCu(AsO4)(OH)Gabrielsonite PbFe2+(AsO4)(OH)Nickelaustinite Ca(Ni,Zn)(AsO4)(OH)Tangeite CaCuVO4(OH)

Aenigmatite GroupTriclinic silicates with general formula A2B6X6O20, A = Ca, Na; B = Al, Cr3+, Fe2+, Fe3+, Mg, Sb5+,Ti; X = Al, B, Be, Si.

Aenigmatite Na2Fe52+TiSi6O20

Dorrite Ca2Mg2Fe43+Al4Si2O20

H_gtuvaite (Ca,Na)2(Fe2+,Fe3+,Ti,Mg,Mn,Sn)6(Si,Be,Al)6O20

Krinovite Na2Mg4Cr2Si6O20

Makarochkinite (Ca,Na)2(Fe2+,Fe3+,Ti,Mg)6(Si,Al,Be)6O20

Rh_nite Ca2(Mg,Fe2+,Fe3+,Ti)6(Si,Al)6O20

Serendibite Ca2(Mg,Al)6(Si,Al,B)6O20

Welshite Ca2Sb5+Mg4Fe3+Si4Be2O20

Wilkinsonite Na2Fe42+Fe2

3+Si6O20

Alluaudite GroupMonoclinic phosphates and arsenates of general formula NaACD2(XO4)3, A = Ca, Mg, Pb; C = Ca,Fe2+, Mn2+; D = Mn2+, Fe2+, Fe3+, Mg; X = P, As.

Alluaudite NaCaFe2+(Mn2+,Fe2+,Fe3+,Mg)2(PO4)3

Arseniopleite NaCaMn2+(Mn2+,Mg)2(AsO4)3

Caryinite Na(Ca,Pb)(Ca,Mn)(Mn,Mg)2(AsO4)3

Ferro-alluaudite NaCaFe2+(Fe2+,Mn2+,Fe3+)2(PO4)3

Hagendorfite NaCaMn2+(Fe2+,Fe3+,Mg)2(PO4)3

Maghagendorfite NaMn2+Mg(Fe2+,Fe3+)2(PO4)3

Varulite (Na,Ca)Mn2+(Mn2+,Fe2+,Fe3+)2(PO4)3

Alunite GroupTrigonal sulfates of general formula AB6(SO4)4(OH)12, A = Ag2

1+, Ca, (H3O)2, K2, Na2, (NH4)2,Tl1+, Pb; B = Al, Cu2+, Fe3+.

Alunite K2Al6(SO4)4(OH)12

Ammonioalunite (NH4)2Al6(SO4)4(OH)12

Ammoniojarosite (NH4)2Fe63+(SO4)4(OH)12

ArgentojarositeAg2Fe63+(SO4)4(OH)12

Beaverite Pb(Cu2+,Fe3+,Al)6(SO4)4(OH)12

Dorallcharite (Tl,K)Fe33+(SO4)2(OH)6

Huangite CaAl6(SO4)4(OH)12

Hydronium jarosite (H3O1+)2Fe6

3+(SO4)4(OH)12

Jarosite K2Fe63+(SO4)4(OH)12

Kintoreite PbFe33+(PO4)2(OH,H2O)6

Minamiite (Na,Ca,K)2Al6(SO4)4(OH)12

Natroalunite Na2Al6(SO4)4(OH)12

Natrojarosite Na2Fe63+(SO4)4(OH)12

Osarizawaite Pb2Cu22+Al4(SO4)4(OH)12

Plumbojarosite PbFe63+(SO4)4(OH)12

Walthierite BaAl6(SO4)4(OH)12

Amblygonite GroupTriclinic phosphates of general formula AB(PO4)X, A = Li, Na; B = Al, Fe3+; X = (OH), F.

Amblygonite (Li,Na)Al(PO4)(F,OH)Montebrasite LiAl(PO4)(OH,F)Natromontebrasite (Na,Li)Al(PO4)(OH,F)Tavorite LiFe3+(PO4)(OH)

Amphibole GroupA major revision of the classification and nomenclature of the Amphibole Group by Leake etal. (1997) has been published in several mineralogical journals. For example, it has appearedin the Canadian Mineralogist 35, 219–246 (1997), Mineralogical Magazine 61, 295–321(1997), the European Journal of Mineralogy 9, 623–651 (1997), and the AmericanMineralogist 82, 1019–1037 (1997). Mandarino (1998) summarized the report in theMineralogical Record 29, 169–174 (1998) as The Second List of Additions and Correctionsto the Glossary of Mineral Species 7th Edition (1995). Readers interested in this complexgroup of minerals should refer to that article and to the original paper by Leake et al. (1997).Since the publication of the papers noted above, several new amphibole species have beendescribed; these are included in this book.

The standard amphibole formula is AB2VIC5

IVT8O22X2. The components A, B, C, T, and Xof the formula correspond to the following crystallographic sites:A one site per formula unit;B two M4 sites per formula unit;C a composite of five octahedral sites made up of 2 M1, 2 M2, and 1 M3 sitesper formula unit;T eight tetrahedral sites in two sets of four per formula unit;X two sites per formula unit.The ions considered normally to occupy these sites are: (empty site) and K at A onlyNa at A or BCa at B onlyL-type ions: Mg, Fe2+, Mn2+, Li, and rarer ions of similar size such as Zn, Ni, Co atC or BM-type ions: Al at C or T

Fe3+, and, more rarely, Mn3+, Cr3+ at C onlyHigh-valency ions: Ti4+ at C or TZr4+ at C onlySi at T onlyAnions: OH, F, Cl, O at X

The amphibole group is divided into four subgroups: magnesium-iron-manganese-lithium(i.e., Mg-Fe-Mn-Li), calcic, sodic-calcic, and sodic. The second column of the followingspecies list indicates the subgroup to which the species belong; MFML = Mg-Fe-Mn-Li, C= calcic, SC = sodic-calcic, and S = sodic.Species names not in bold indicate compositions that may not have been found in nature yet.

Actinolite C Ca2(Mg,Fe2+)5Si8O22(OH)2Aluminobarroisite SC (CaNa)Mg3Al2Si7AlO22(OH)2Alumino-ferrobarroisite SC (CaNa)Fe3

2+Al2Si7AlO22(OH)2Alumino-ferrotschermakite C Ca2(Fe3

2+Al2)Si6Al2O22(OH)2Alumino-magnesiotaramite SC Na(CaNa)Mg3Al2Si6Al2O22(OH)2Aluminotaramite SC Na(CaNa)Fe3

2+Al2Si6Al2O22(OH)2Aluminotschermakite C Ca2(Mg3Al2)Si6Al2O22(OH)2Anthophyllite MFML Mg7Si8O22(OH)2Arfvedsonite SNaNa2(Fe4

2+Fe3+)Si8O22(OH)2Barroisite SC (CaNa)Mg3AlFe3+Si7AlO22(OH)2Cannilloite C CaCa2(Mg4Al)Si5Al3O22(OH)2Clinoferroholmquistite MFML (Li2Fe3

2+Al2)Si8O22(OH)2Clinoholmquistite MFML (Li2Mg3Al2)Si8O22(OH)2Cummingtonite MFML Mg7Si8O22(OH)2Eckermannite SNaNa2(Mg4Al)Si8O22(OH)2Edenite C NaCa2Mg5Si7AlO22(OH)2Ferribarroisite SC (CaNa)Mg3Fe2

3+Si7AlO22(OH)2Ferric-ferronyb_ite SNaNa2(Fe3

2+Fe23+)Si7AlO22(OH)2

Ferri-clinoferroholmquistite MFML (Li2Fe32+Fe2

3+)Si8O22(OH)2Ferri-clinoholmquistite MFML (Li2Mg3Fe2

3+)Si8O22(OH)2Ferric-nyb_ite SNaNa2(Mg3Fe2

3+)Si7AlO22(OH)2Ferri-ferrobarroisite SC (CaNa)Fe3

2+Fe23+Si7AlO22(OH)2

Ferri-ferrotschermakiteC Ca2(Fe32+Fe2

3+)Si6Al2O22(OH)2Ferri-magnesiotaramite SC Na(CaNa)Mg3Fe2

3+Si6Al2O22(OH)2Ferritaramite SC Na(CaNa)Fe3

2+Fe23+Si6Al2O22(OH)2

Ferritschermakite C Ca2(Mg3Fe23+)Si6Al2O22(OH)2

Ferro-actinolite C Ca2Fe52+Si8O22(OH)2

Ferro-anthophyllite MFML Fe72+Si8O22(OH)2

Ferrobarroisite SC (CaNa)Fe32+AlFe3+Si7AlO22(OH)2

Ferro-eckermannite SNaNa2(Fe42+Al)Si8O22(OH)2

Ferro-edenite C NaCa2Fe52+Si7AlO22(OH)2

Ferrogedrite MFML Fe52+Al2Si6Al2O22(OH)2

Ferroglaucophane SNa2(Fe32+Al2)Si8O22(OH)2

Ferroholmquistite MFML (Li2Fe32+Al2)Si8O22(OH)2

Ferrohornblende C Ca2[Fe42+(Al,Fe3+)]Si7AlO22(OH)2

Ferrokaersutite C NaCa2(Fe42+Ti)Si6Al2O23(OH)

Ferroleakeite SNaNa2(Fe22+Fe2

3+Li)Si8O22(OH)2Ferronyb_ite SNaNa2(Fe3

2+Al2)Si7AlO22(OH)2Ferropargasite C NaCa2(Fe4

2+Al)Si6Al2O22(OH)2Ferrorichterite SC Na(CaNa)Fe5

2+Si8O22(OH)2Ferrotschermakite C Ca2(Fe3

2+AlFe3+)Si6Al2O22(OH)2Ferrowinchite SC (CaNa)Fe4

2+(Al,Fe3+)Si8O22(OH)2Fluorocannilloite C CaCa2(Mg4Al)Si5Al3O22F2

Fluoro-ferroleakeite SNaNa2(Fe22+Fe2

3+Li)Si8O22F2

Fluororichterite SC Na(CaNa)Mg5Si8O22F2

Gedrite MFML Mg5Al2Si6Al2O22(OH)2Glaucophane SNa2(Mg3Al2)Si8O22(OH)2Grunerite MFML Fe7

2+Si8O22(OH)2Hastingsite C NaCa2(Fe4

2+Fe3+)Si6Al2O22(OH)2Holmquistite MFML (Li2Mg3Al2)Si8O22(OH)2Kaersutite C NaCa2(Mg4Ti)Si6Al2O23(OH)Katophorite SC Na(CaNa)Fe4

2+(Al,Fe3+)Si7AlO22(OH)2Kornite S(Na,K)Na2(Mg2Mn2

3+Li)Si8O22(OH)2Kozulite SNaNa2Mn4

2+(Fe3+,Al)Si8O22(OH)2Leakeite SNaNa2(Mg2Fe2

3+Li)Si8O22(OH)2Magnesio-arfvedsonite SNaNa2(Mg4Fe3+)Si8O22(OH)2Magnesiohastingsite C NaCa2(Mg4Fe3+)Si6Al2O22(OH)2Magnesiohornblende C Ca2[Mg4(Al,Fe3+)]Si7AlO22(OH)2Magnesiokatophorite SC Na(CaNa)Mg4(Al,Fe3+)Si7AlO22(OH)2Magnesioriebeckite SNa2(Mg3Fe2

3+)Si8O22(OH)2Magnesiosadanagaite C NaCa2[Mg3(Al,Fe3+)2]Si5Al3O22(OH)2Magnesiotaramite SC Na(CaNa)Mg3AlFe3+Si6Al2O22(OH)2ManganocummingtoniteMFML Mn2Mg5Si8O22(OH)2Manganogrunerite MFML Mn2Fe5

2+Si8O22(OH)2Nyb_ite SNaNa2(Mg3Al2)Si7AlO22(OH)2Pargasite C NaCa2(Mg4Al)Si6Al2O22(OH)2Permanganogrunerite MFML Mn4Fe3

2+Si8O22(OH)2Potassic-fluororichterite SC (K,Na)(CaNa)Mg5Si8O22F2

Potassic-magnesiosadanagaiteC (K,Na)Ca2[Mg3(Al,Fe3+)2]- Si5Al3O22(OH)2

Potassicpargasite C (K,Na)Ca2(Mg,Fe,Al)5- (Si,Al)8O22(OH,F)2

Potassicsadanagaite C (K,Na)Ca2[Fe32+(Al,Fe3+)2]-

Si5Al3O22(OH)2Protoferro-anthophyllite MFML (Fe2+,Mn2+)2(Fe2+,Mg)5(Si4O11)2(OH)2Protomangano-ferro-anthophyllite

MFML (Mn2+,Fe2+)2(Fe2+,Mg)5(Si4O11)2(OH)2Richterite SC Na(CaNa)Mg5Si8O22(OH)2Riebeckite SNa2(Fe3

2+Fe23+)Si8O22(OH)2

Sadanagaite C NaCa2[Fe32+(Al,Fe3+)2]Si5Al3O22(OH)2

Sodicanthophyllite MFML NaMg7Si8O22(OH)2

Sodic-ferri-clinoferroholmquistiteMFML Li2(Fe2+,Mg)3Fe2

3+Si8O22(OH)2Sodic-ferro-anthophyllite MFML NaFe7

2+Si8O22(OH)2Sodic-ferrogedrite MFML NaFe6

2+AlSi6Al2O22(OH)2Sodicgedrite MFML NaMg6AlSi6Al2O22(OH)2Taramite SC Na(CaNa)Fe3

2+AlFe3+Si6Al2O22(OH)2Tremolite C Ca2Mg5Si8O22(OH)2Tschermakite C Ca2(Mg3AlFe3+)Si6Al2O22(OH)2Ungarettiite SNaNa2(Mn2

2+Mn33+)Si8O22O2

Winchite SC (CaNa)Mg4(Al,Fe3+)Si8O22(OH)2Joesmithite is a related mineral.

Apatite GroupHexagonal, or monoclinic, pseudohexagonal arsenates, phosphates, and vanadates of generalformula A5(XO4)3(F,CL,CH); A = Ba, Ca, Ce, K, Na, Pb, Sr, Y; X = As5+, P5+, Si4+, V5+;(CO3) may partially replace (PO4).

Alforsite Ba5(PO4)3ClBelovite-(Ce) Sr3Na(Ce,La)(PO4)3(F,OH)Belovite-(La) Sr3Na(La,Ce)(PO4)3(F,OH)Carbonate-fluorapatite Ca5(PO4,CO3)3FCarbonate-hydroxylapatite Ca5(PO4,CO3)3(OH)Chlorapatite Ca5(PO4)3ClClinomimetite Pb5(AsO4)3ClFermorite (Ca,Sr)5(AsO4,PO4)3(OH)Fluorapatite Ca5(PO4)3FHedyphane Pb3Ca2(AsO4)3ClHydroxylapatite Ca5(PO4)3(OH)Johnbaumite Ca5(AsO4)3(OH)Mimetite Pb5(AsO4)3ClMorelandite (Ba,Ca,Pb)5(AsO4,PO4)3ClPyromorphite Pb5(PO4)3ClStrontium-apatite (Sr,Ca)5(PO4)3(OH,F)Svabite Ca5(AsO4)3FTurneaureite Ca5[(As,P)O4]3ClVanadinite Pb5(VO4)3Cl

Britholite-(Ce), Britholite-(Y), Fluorbritholite-(Ce), Chlorellestadite, Fluorellestadite,Hydroxylellestadite, and Mattheddleite are silicates that are isostructural with members ofthe Apatite group; so is the sulfate Cesanite.

Aragonite GroupOrthorhombic carbonates of general formula ACO3, A = Ba, Ca, Pb, Sr; compare the Calcitegroup.

Aragonite CaCO3

Cerussite PbCO3

Strontianite SrCO3

Witherite BaCO3

Arsenic GroupTrigonal semi-metals (As, Bi, Sb).

Antimony SbArsenic AsBismuth BiStibarsen SbAs

Arsenopyrite GroupSulfides of general formula ABS, mon. or orth., A = Co, Fe, Os, Ru; B = As, Sb.

Arsenopyrite FeAsSGlaucodot (Co,Fe)AsSGudmundite FeSbSOsarsite (Os,Ru)AsSRuarsite RuAsS

Arthurite GroupMonoclinic arsenates and phosphates of general formula A2+Fe2

3+(XO4)2(O,OH)2⋅4H2O;A2+; A2+ = Cu, Fe, Mn, Zn; X = As, P, S.

Arthurite Cu2+Fe23+(AsO4,PO4,SO4)2(O,OH)2⋅4H2O

Earlshannonite (Mn2+,Fe2+)Fe23+(PO4)2(OH)2⋅4H2O

Ojuelaite ZnFe23+(AsO4)2(OH)2⋅4H2O

Whitmoreite Fe2+Fe23+(PO4)2(OH)2⋅4H2O

Astrophyllite GroupTriclinic silicates of general formula A3B7C2Si8O24(O,OH)7, A = Ca, Cs, (H3O), K, Na; B =Fe2+, Mg, Mn2+; C = Nb, Ti, Zr.

Astrophyllite (K,Na)3(Fe2+,Mn)7Ti2Si8O24(O,OH)7

Cesium-kupletskite (Cs,K,Na)3(Mn,Fe2+)7(Ti,Nb)2Si8O24(O,OH,F)7

Hydroastrophyllite (H3O,K,Ca)3(Fe2+,Mn)5–6Ti2Si8(O,OH)31

Kupletskite (K,Na)3(Mn,Fe2+)7(Ti,Nb)2Si8O24(O,OH)7

Magnesium astrophyllite (Na,K)4Mg2(Fe2+,Fe3+,Mn)5Ti2Si8O24(O,OH,F)7

Niobophyllite (K,Na)3(Fe2+,Mn2+)6(Nb,Ti)2Si8(O,OH,F)31

Zircophyllite (K,Na,Ca)3(Mn,Fe2+)7(Zr,Nb)2Si8O27(OH,F)4

Autunite GroupTetragonal uranyl arsenate, phosphates, and vanadates of general formulaA(UO2)2(XO4)2⋅8–12H2O; A = Ba, Ca, Cu, Fe2+, 1/2(HAl), Mg, Mn2+, Na3(UO2); X = As,P, V.

Autunite Ca(UO2)2(PO4)2⋅10–12H2OFritzscheite Mn2+(UO2)2[(P,V)O4]2⋅10H2O (?)Heinrichite Ba(UO2)2(AsO4)2⋅10–12H2OKahlerite Fe2+(UO2)2(AsO4)2⋅10–12H2ONov__ekite Mg(UO2)2(AsO4)2⋅12H2OSabugalite H0.5Al0.5(UO2)2(PO4)2⋅8H2O

Sal_eite Mg(UO2)2(PO4)2⋅10H2OSodium autunite Na2(UO2)2(PO4)2⋅8H2OTorbernite Cu2+(UO2)2(PO4)2⋅8–12H2OTr_gerite (UO2)3(AsO4)2⋅12H2O (?)Uranocircite Ba(UO2)2(PO4)2⋅12H2OUranospinite Ca(UO2)2(AsO4)2⋅10H2OZeunerite Cu2+(UO2)2(AsO4)2⋅10–16H2O

Axinite GroupTriclinic borosilicates of general formula A3Al2BSi4O15(OH), A = Ca, Fe2+, Mg, Mn2+.

Ferro-axinite Ca2Fe2+Al2BSi4O15(OH)Magnesio-axinite Ca2MgAl2BSi4O15(OH)Manganaxinite Ca2Mn2+Al2BSi4O15(OH)Tinzenite (Ca,Mn2+,Fe2+)3Al2BSi4O15(OH)

Barite GroupOrthorhombic sulfates and chromate of general formula AXO4, A = Ba, Pb, Sr; X = Cr6+,S6+.

Anglesite PbSO4

Barite BaSO4

Celestine SrSO4

Hashemite Ba(Cr,S)O4

Beudantite GroupTrigonal sulfate-arsenates and sulfate-phosphates of general formula AB3(XO4)(SO4)(OH)6,A = Ba, Ca, Ce, Pb, Sr, (H3); B = Al, Fe3+, Ga;X = As5+, P5+.

Beudantite PbFe33+(AsO4)(SO4)(OH)6

Corkite PbFe33+(PO4)(SO4)(OH)6

Gallobeudantite PbGa3[(AsO4),(SO4)]2(OH)6Hidalgoite PbAl3(AsO4)(SO4)(OH)6

Hinsdalite (Pb,Sr)Al3(PO4)(SO4)(OH)6

Kemmlitzite (Sr,Ce)Al3(AsO4)(SO4)(OH)6

Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6Svanbergite SrAl3(PO4)(SO4)(OH)6

Woodhouseite CaAl3(PO4)(SO4)(OH)6

Bjarebyite GroupMonoclinic and triclinic phosphates of general formula AB2C2(PO4)3(OH)3,A = Ba, Sr; B = Fe2+, Mg, Mn2+; C = Al, Fe3+.

Bjarebyite (Ba,Sr)(Mn2+,Fe2+,Mg)2Al2(PO4)3(OH)3Kulanite Ba(Fe2+,Mn,Mg)2Al2(PO4)3(OH)3Penikisite Ba(Mg,Fe2+)2Al2(PO4)3(OH)3Perloffite Ba(Mn2+,Fe2+)2Fe2

3+(PO4)3(OH)3

Brackebuschite GroupMonoclinic arsenates, phosphates, and vanadates of general formula A2B(XO4)2(OH,H2O),A = Ba, Ca, Pb, Sr; B = Al, Cu2+, Fe2+, Fe3+, Mn2+, Mn3+, Zn; XO4 = AsO4, PO4, SO4,VO4.

Arsenbrackebuschite Pb2(Fe2+,Zn)(AsO4)2⋅H2OArsentsumebite Pb2Cu2+(AsO4)(SO4)(OH)Bearthite Ca2Al(PO4)2(OH)Brackebuschite Pb2(Mn3+,Fe3+)(VO4)2(OH)Feinglosite Pb2(Zn,Fe)[(As,S)O4]2⋅H2OGamagarite Ba2(Fe3+,Mn3+)(VO4)2(OH)Goedkenite (Sr,Ca)2Al(PO4)2(OH)Tsumebite Pb2Cu(PO4)(SO4)(OH)

Fornacite and Vauquelinite are structurally related to the members of this group.

Brucite GroupTrigonal hydroxides of general formula M 2+(OH)2, M

2+ = Fe, Mg, Mn, Ni.Amakinite (Fe2+,Mg)(OH)2

Brucite Mg(OH)2

Pyrochroite Mn2+(OH)2Theophrastite Ni(OH)2

Calcite GroupTrigonal carbonates of general formula A2+(CO3), A

2+ = Ca, Cd, Co, Fe, Mg, Mn, Ni, Zn;compare the Aragonite group.

Calcite CaCO3

Gasp_ite (Ni,Mg,Fe2+)CO3

Magnesite MgCO3

Otavite CdCO3

Rhodochrosite Mn2+CO3

Siderite Fe2+CO3

Smithsonite ZnCO3

Sphaerocobaltite CoCO3

Cancrinite GroupHexagonal silicates of general formula A6–9(Si,Al)12O24[(SO4),(CO3),Cl2, (OH)]2–4⋅nH2O. A = Na, Ca, K.

Afghanite (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3⋅H2OBystrite Ca(Na,K)7Si6Al6O24(S

2–)1.5⋅H2OCancrinite Na6Ca2Al6Si6O24(CO3)2

Cancrisilite Na7Al5Si7O24(CO3)⋅3H2ODavyne (Na,Ca,K)8Al6Si6O24(Cl,SO4,CO3)2–3

Franzinite (Na,Ca)7(Si,Al)12O24(SO4,CO3,OH,Cl)3⋅H2OGiuseppettite (Na,K,Ca)7–8(Si,Al)12O24(SO4Cl)1–2

Hydroxycancrinite Na8Al6Si6O24(OH)2⋅2H2O

Liottite (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4⋅H2OMicrosommite (Na,Ca,K)7–8(Si,Al)12O24(Cl,SO4,CO3)2–3

Pitaglianoite K2Na6Si6Al6O24(SO4)⋅2H2OQuadridavyne [(Na,K)6Cl2](Ca2Cl2)(Si6Al6O24)Sacrofanite (Na,Ca,K)9(Si,Al)12O24[(OH)2,(SO4),(CO3),Cl2]3⋅nH2OTounkite (Na,Ca,K)8(Al6Si6O24)(SO4)2Cl⋅H2OVishnevite (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2–4⋅nH2OWenkite (?) Ba4Ca6(Si,Al)20O39(OH)2(SO4)3⋅nH2O (?)

Chalcanthite GroupTriclinic sulfates of general formula A2+(SO4)⋅5H2O, A2+ = Cu, Fe, Mg, Mn.

Chalcanthite Cu2+SO4⋅5H2OJokokuite Mn2+SO4⋅5H2OPentahydrite MgSO4⋅5H2OSiderotil Fe2+SO4⋅5H2O

Chalcopyrite GroupTetragonal sulfides of general formula CuBX2, B = Fe, Ga, In; X = S, Se.

Chalcopyrite CuFeS2

Eskebornite CuFeSe2

Gallite CuGaS2

Roquesite CuInS2

Lenaite is a related mineral.

Chlorite GroupMonoclinic or triclinic silicates of general formula A4–6Z4O10(OH,O)8, A = Al, Fe2+, Fe2+, Li,Mg, Mn2+, Ni, Zn; Z = Al, B, Fe3+, Si. Their nomenclature is discussed by Hey, Min. Mag.30, 277–292 (1954) and by Bayliss, Can. Min. 13, 178–180 (1975).

Baileychlore (Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8Chamosite (Fe2+,Mg,Fe3+)5Al(Si3Al)O10(OH,O)8

Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8Cookeite LiAl4(Si3Al)O10(OH)8Gonyerite (Mn2+,Mg)5Fe3+(Si3Fe3+)O10(OH)8Nimite (Ni,Mg,Fe2+)5Al(Si3Al)O10(OH)8Orthochamosite (Fe2+,Mg,Fe3+)5Al(Si3Al)O10(OH,O)8

Pennantite Mn52+Al(Si3Al)O10(OH)8

Sudoite Mg2(Al,Fe3+)3Si3AlO10(OH)8Compare Franklinfurnaceite.

Cobaltite GroupSulfides, cubic or pseudo-cubic, of general formula ABS, A = Co, In, Ir, Ni, Pd, Pt, Rh, Ru;B = As, Sb, Bi.

Cobaltite CoAsSGersdorffite NiAsSHollingworthite (Rh,Pt,Pd)AsS

Irarsite (Ir,Ru,Rh,Pt)AsSJolliffeite NiAsSePadmaite PdBiSePlatarsite (Pt,Rh,Ru)AsSTolovkite IrSbSUllmannite NiSbSWillyamite (Co,Ni)SbS

Colusite GroupCubic sulfides with general formula Cu26A2B6S32 or Cu26A4B4S32 where A = V, Fe and B =As, Sn, Sb, Ge.

Colusite Cu26V2(As,Sn,Sb)6S32

Germanite Cu26Fe4Ge4S32

Germanocolusite Cu26V2(Ge,As)6S32

Nekrasovite Cu26V2(Sn,As,Sb)6S32

Stibiocolusite Cu26V2(Sb,Sn,As)6S32

Copiapite GroupTriclinic sulfates of formula either A2+Fe4

3+(SO4)6(OH)2⋅18–20H2O, orB3+2/3Fe4

3+(SO4)6(OH)2⋅20H2O; A2+ = Ca, Cu, Fe, Mg, Zn; B3+ = Al, Fe.Aluminocopiapite Al2/3Fe4

3+(SO4)6(OH)2⋅20H2OCalciocopiapite CaFe4

3+(SO4)6(OH)2⋅19H2OCopiapite Fe2+Fe4

3+(SO4)6(OH)2⋅20H2OCuprocopiapite Cu2+Fe4

3+(SO4)6(OH)2⋅20H2OFerricopiapite Fe3+2/3Fe4

3+(SO4)6(OH)2⋅20H2OMagnesiocopiapite MgFe4

3+(SO4)6(OH)2⋅20H2OZincocopiapite ZnFe4

3+(SO4)6(OH)2⋅18H2O

Crandallite GroupTrigonal phosphates and arsenates of general formula AB3(XO4)2(OH,F)5, orAB3(XO4)2(OH,F)6; A = Ba, Bi, Ca, Ce, La, Nd, Pb, Sr, Th; B = Al, Fe3+; X = As, P, Si.

Arsenocrandallite (Ca,Sr)Al3[(As,P)O4]2(OH)5⋅H2OArsenoflorencite-(Ce) (Ce,La)Al3(AsO4,PO4)2(OH)6Arsenogorceixite HBaAl3(AsO4)2(OH)6Arsenogoyazite (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5⋅H2O

Benauite HSrFe33+(PO4)2(OH)6

Crandallite CaAl3(PO4)2(OH)5⋅H2ODussertite BaFe3

3+(AsO4)2(OH)5Eylettersite (Th,Pb)1–xAl3(PO4,SiO4)2(OH)6 (?)Florencite-(Ce) CeAl3(PO4)2(OH)6Florencite-(La) (La,Ce)Al3(PO4)2(OH)6Florencite-(Nd) (Nd,Ce)Al3(PO4)2(OH)6Gorceixite BaAl3(PO4)(PO3OH)(OH)6

Goyazite SrAl3(PO4)2(OH)5⋅H2OPhilipsbornite PbAl3(AsO4)2(OH)5⋅H2O

Plumbogummite PbAl3(PO4)2(OH)5⋅H2OWaylandite (Bi,Ca)Al3(PO4,SiO4)2(OH)6Zairite Bi(Fe3+,Al)3(PO4)2(OH)6

Crichtonite GroupTrigonal, or monoclinic, pseudotrigonal oxides of general formula AB21(O,OH)38; A = Ba,Ca, Ce, K, La, Na, Pb, Sr, Y; B = Cr3+, Fe2+, Fe3+, Mg, Mn2+, Ti, U, V3+, Zn, Zr.

Crichtonite (Sr,La,Ce,Y)(Ti,Fe3+,Mn)21O38

Davidite-(Ce) (Ce,La)(Y,U,Fe2+)(Ti,Fe3+)20(O,OH)38

Davidite-(La) (La,Ce)(Y,U,Fe2+)(Ti,Fe3+)20(O,OH)38

Dessauite (Sr,Pb)(Y,U)(Ti,Fe3+)20O38

Landauite NaMn2+Zn2(Ti,Fe3+)6Ti12O38

Lindsleyite (Ba,Sr)(Ti,Cr,Fe,Mg,Zr)21O38

Loveringite (Ca,Ce)(Ti,Fe3+,Cr,Mg)21O38

Mathiasite (K,Ca,Sr)(Ti,Cr,Fe,Mg)21O38

Senaite Pb(Ti,Fe,Mn)21O38

Cryptomelane GroupComplex oxides, tetragonal or monoclinic, pseudo-tetragonal, of general formula AB8O16, A= Ba, K, Mn4+, Na, Pb, Sr; B = Cr3+, Fe3+, Mg, Mn2+, Ti, V3+, Zn, Zr.

Ankangite Ba(Ti,V3+,Cr3+)8O16

Coronadite Pb(Mn4+,Mn2+)8O16

Cryptomelane K(Mn4+,Mn2+)8O16

Hollandite Ba(Mn4+,Mn2+)8O16

Manjiroite (Na,K)(Mn4+,Mn2+)8O16⋅nH2OMannardite Ba(Ti6V2

3+)O16

Priderite (K,Ba)(Ti,Fe3+)8O16

Redledgeite BaTi6Cr23+O16⋅H2O

Cuspidine GroupMonoclinic and triclinic silicates of general formula X16(Si2O7)4(O,OH,F)8, where X is: Na,Ca, Zr, Ti, Nb, Mn2+, Fe2+, Y, and REE. On structural grounds, this group can be split intofour subgroups with the following species: (a) Cuspidine, L_venite, Normandite, Niocalite,Hiortdahlite II, and Janhaugite; (b) W_hlerite; (c) Baghdadite and Burpalite; (d) HiortdahliteI. The Cuspidine Group is closely related to the G_tzenite Group. For details see thepaper by Merlino & Perchiazzi in Can. Min. 26, 933–943 (1988).

Baghdadite Ca12(Zr,Ti)4(Si2O7)4(O,F)8, mon.Burpalite Na8Ca4Zr4(Si2O7)4F8, mon.Cuspidine Ca16(Si2O7)4(F,OH)8, mon.Hiortdahlite I (Na3Ca)Ca8Zr2M 2(Si2O7)4(O3F5), tric.

(M has an average charge of 3+)Hiortdahlite II (Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5), tric.Janhaugite Na6Mn6

2+Ti4(Si2O7)4[O2(OH,F,O)6], mon.L_venite (Na,Ca)8(Mn2+,Fe2+)4)(Zr,Ti)4(Si2O7)4(O,OH,F)8, mon.Niocalite Ca14Nb2(Si2O7)4(O6F2), mon.Normandite Na4Ca4(Mn2+,Fe2+)4(Zr,Ti)4(Si2O7)4(O4F4), mon.

W_hlerite Na4Ca8(Zr,Nb)4(Si2O7)4(O,OH,F)8, mon.

Datolite GroupSee Gadolinite group.

Descloizite GroupOrthorhombic arsenates and vanadates of general formula PbM(XO4)(OH), M = Cu2+ Fe2+ Mn2+ Zn; X = As5+, V5+

Arsendescloizite PbZn(AsO4)(OH)_echite Pb(Fe2+,Mn)(VO4)(OH)Descloizite PbZn(VO4)(OH)Mottramite PbCu2+(VO4)(OH)Pyrobelonite PbMn2+(VO4)(OH)

Dolomite GroupTrigonal carbonates of general formula AB(CO3)2, A = Ba, Ca; B = Fe2+, Mg, Mn2+, Zn.

Ankerite Ca(Fe2+,Mg,Mn)(CO3)2

Dolomite CaMg(CO3)2

Kutnohorite Ca(Mn2+,Mg,Fe2+)(CO3)2

Minrecordite CaZn(CO3)2

Norsethite BaMg(CO3)2

Isostructural with the borates Nordenski_ldine and Tusionite.

Epidote GroupMonoclinic and orthorhombic silicates of general formula A2B3(SiO4)3(OH), orA2B3Si3O11(OH,F)2, A = Ca, Ce, Pb, Sr, Y; B = Al, Fe3+, Mg, Mn3+, V3+.

Allanite-(Ce) (Ce,Ca,Y)2(Al,Fe2+,Fe3+)3(SiO4)3(OH)Allanite-(Y) (Y,Ce,Ca)2(Al,Fe3+)3(SiO4)3(OH)Androsite-(La) (Mn,Ca)(La,Ce,Ca,Nd)AlMn3+Mn2+(SiO4)(Si2O7)O(OH)Clinozoisite Ca2Al3(SiO4)3(OH)Dissakisite-(Ce) Ca(Ce,La)MgAl2(SiO4)3(OH)Dollaseite-(Ce) CaCeMg2AlSi3O11(F,OH)2

Epidote Ca2(Fe3+,Al)3(SiO4)3(OH)Hancockite (Pb,Ca,Sr)2(Al,Fe3+)3(SiO4)3(OH)Khristovite-(Ce) (Ca,REE)REE(Mg,Fe2+)AlMn2+Si3O11(OH)(F,O)Mukhinite Ca2Al2V

3+(SiO4)3(OH)Piemontite Ca2(Al,Mn3+,Fe3+)3(SiO4)3(OH)Strontiopiemontite CaSr(Al,Mn3+,Fe3+)3Si3O11O(OH)Zoisite Ca2Al3(SiO4)3(OH)

Ettringite GroupHexagonal sulfates of general formula Ca6X2Y(O,OH)12⋅24–26H2O, X = Al, Cr3+ Fe3+, Mn2+, Mn4+, Si; Y = (SO4,CO3)3 or (SO4)2B(OH)4.

Bentorite Ca6(Cr,Al)2(SO4)3(OH)12⋅26H2OCharlesite Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12⋅26H2O

Ettringite Ca6Al2(SO4)3(OH)12⋅26H2OJouravskite Ca6Mn2

4+(SO4,CO3)4(OH)12⋅26H2OSturmanite Ca6(Fe3+,Al,Mn2+)2(SO4)2[B(OH)4](OH)12⋅25H2OThaumasite Ca6Si2(CO3)2(SO4)2(OH)12⋅24H2O

Fairfieldite GroupTriclinic arsenates and phosphates of general formula Ca2B(XO4)2⋅2H2O, B = Co, Fe2+, Mg,Mn2+, Ni, Zn; X = As, P.

Cassidyite Ca2(Ni,Mg)(PO4)2⋅2H2OCollinsite Ca2(Mg,Fe2+)(PO4)2⋅2H2OFairfieldite Ca2(Mn2+,Fe2+)(PO4)2⋅2H2OGaitite Ca2Zn(AsO4)2⋅2H2OMesselite Ca2(Fe2+,Mn2+)(PO4)2⋅2H2OParabrandtite Ca2Mn2+(AsO4)2⋅2H2ORoselite-beta Ca2Co(AsO4)2⋅2H2OTalmessite Ca2Mg(AsO4)2⋅2H2O

Feldspar GroupSilicates of general formula XZ4O8, monoclinic, triclinic, orthorhombic, X = Ba, Ca, K, Na,NH4, Sr; Z = Al, B, Si.

Albite NaAlSi3O8

Anorthite CaAl2Si2O8

Anorthoclase (Na,K)AlSi3O8

Banalsite BaNa2Al4Si4O16

Buddingtonite (NH4)AlSi3O8

Celsian BaAl2Si2O8

Dmisteinbergite CaAl2Si2O8

Hyalophane (K,Ba)Al(Si,Al)3O8

Microcline KAlSi3O8

Orthoclase KAlSi3O8

Paracelsian BaAl2Si2O8

Reedmergnerite NaBSi3O8

Sanidine a mon. K-Na feldsparSlawsonite (Sr,Ca)Al2Si2O8

Stronalsite SrNa2Al4Si4O16

Svyatoslavite CaAl2Si2O8

Ferrotapiolite GroupTetragonal oxides of general formula A2+B2

5+O6, A2+ = Fe, Mg, Mn, Zn; B5+ = Nb, Sb, Ta.

Bystr_mite MgSb25+O6

Ferrotapiolite (Fe2+,Mn2+)(Ta,Nb)2O6

Manganotapiolite (Mn2+,Fe2+)(Ta,Nb)2O6

Ordo_ezite ZnSb25+O6

Tripuhyite Fe2+Sb25+O6

Gadolinite GroupMonoclinic silicates of general formula W2–3X(B,Be)2(Si,B)2(O,OH)10, W = Ca, Ce, Y, Yb; X= Y, Fe2+, Mg.

Bakerite Ca4B4(BO4)(SiO4)3(OH)3⋅H2ODatolite Ca2B2Si2O8(OH)2Gadolinite-(Ce) (Ce,La,Nd,Y)2Fe2+Be2Si2O10

Gadolinite-(Y) Y2Fe2+Be2Si2O10

Hingganite-(Yb) (Yb,Y)2Be2Si2O8(OH)2Homilite Ca2(Fe2+,Mg)B2Si2O10

Minasgeraisite-(Y) CaY2Be2Si2O10

The phosphates Drugmanite, Herderite and Hydroxylherderite and the arsenate Bergslagiteare structurally related to the silicates of this group.

Garnet GroupCubic silicates of general formula A3B2(SiO4)3; (for Hibschite and Katoite,A3B2(SiO4)3–x(OH)4x), A = Ca, Fe2+, Mg, Mn2+; B = Al, Cr3+, Fe3+, Mn3+. Si, Ti, V3+, Zr; Siis partly replaced by Al, Fe3+.

Almandine Fe32+Al2(SiO4)3

Andradite Ca3Fe23+(SiO4)3

Calderite (Mn2+,Ca)3(Fe3+,Al)2(SiO4)3

Goldmanite Ca3(V,Al,Fe3+)2(SiO4)3

Grossular Ca3Al2(SiO4)3

Hibschite Ca3Al2(SiO4)3–x(OH)4x

Katoite Ca3Al2(SiO4)3–x(OH)4x

Kimzeyite Ca3(Zr,Ti)2(Si,Al,Fe3+)3O12

Knorringite Mg3Cr2(SiO4)3

Majorite Mg3(Fe,Al,Si)2(SiO4)3

Morimotoite Ca3TiFe2+Si3O12

Pyrope Mg3Al2(SiO4)3

Schorlomite Ca3Ti24+(Fe2

3+Si)O12

Spessartine Mn32+Al2(SiO4)3

Uvarovite Ca3Cr2(SiO4)3

The tellurate Yafsoanite, the arsenates Berzeliite and Manganberzeliite, the vanadatePalenzonaite, and the halide Cryolithionite are isostructural with the minerals of the Garnetgroup. Henritermierite is a related mineral.

G_tzenite GroupMonoclinic and triclinic silicates of general formula X16(Si2O7)4(O,OH,F)8, where X is: Na,Ca, Zr, Ti, Mn. The G_tzenite Group is closely related to the Cuspidine Group. Fordetails see the paper by Merlino & Perchiazzi in Can. Min. 26, 933–943 (1988).

G_tzenite Na4Ca10Ti2(Si2O7)4F8, tric.Hainite Na4Ca10Ti2(Si2O7)4(O,OH)4F4, tric.Rosenbuschite (Ca,Na)12(Zr,Ti)4(Si2O7)4(O4F4), tric.Seidozerite (Na,Ca)8(Zr,Ti,Mn)8(Si2O7)4(O,F)8, mon.

Halotrichite GroupMonoclinic sulfates of general formula AB2(SO4)4⋅22H2O, A = Fe2+, Mg, Mn2+, Ni, Zn; B =Al, Cr3+, Fe3+.

Apjohnite Mn2+Al2(SO4)4⋅22H2OBilinite Fe2+Fe2

3+(SO4)4⋅22H2ODietrichite (Zn,Fe2+,Mn2+)Al2(SO4)4⋅22H2OHalotrichite Fe2+Al2(SO4)4⋅22H2OPickeringite MgAl2(SO4)4⋅22H2ORedingtonite (Fe2+,Mg,Ni)(Cr,Al)2(SO4)4⋅22H2OWupatkiite (Co,Mg,Ni)Al2(SO4)4⋅22H2O

Hauchecornite GroupTetragonal sulfosalts of general formula A9BCS8, A = Co, Ni; B = As, Bi, Sb; C = Bi, Sb, Te.

Arsenohauchecornite Ni9BiAsS8

Bismutohauchecornite Ni9Bi2S8

Hauchecornite Ni9Bi(Sb,Bi)S8

Tellurohauchecornite Ni9BiTeS8

Tu_ekite Ni4Sb2S8

Hematite GroupTrigonal oxides of general formula R2O3, R = Al, Cr3+, Fe3+, V3+.

Corundum Al2O3

Eskolaite Cr2O3

Hematite a-Fe2O3

Karelianite V2O3

Hexahydrite GroupMonoclinic sulfates of general formula M 2+SO4⋅6H2O, M 2+ = Co, Fe, Mg, Mn, Ni, Zn.

Bianchite (Zn,Fe2+)(SO4)⋅6H2OChvaleticeite (Mn2+,Mg)SO4⋅6H2OFerrohexahydrite Fe2+SO4⋅6H2OHexahydrite MgSO4⋅6H2OMoorhouseite (Co,Ni,Mn2+)SO4⋅6H2ONickelhexahydrite (Ni,Mg,Fe2+)(SO4)⋅6H2O

Humite GroupSilicates, orthorhombic or monoclinic, that form a morphotropic series with Olivine, withcompositions A2SiO4, A2SiO4⋅A(OH)2, 2A2SiO4⋅A(OH)2, 3A2SiO4⋅A(OH)2,4A2SiO4⋅A(OH)2; A = Fe2+, Mg, Mn2+; (OH) is partially replaced by F.

Alleghanyite Mn52+(SiO4)2(OH)2

Chondrodite (Mg,Fe2+)5(SiO4)2(F,OH)2

Clinohumite (Mg,Fe2+)9(SiO4)4(F,OH)2

Humite (Mg,Fe2+)7(SiO4)3(F,OH)2

Jerrygibbsite Mn92+(SiO4)4(OH)2

Leucophoenicite Mn72+(SiO4)3(OH)2

Manganhumite (Mn2+,Mg)7(SiO4)3(OH)2Norbergite Mg3(SiO4)(F,OH)2

Ribbeite (Mn2+,Mg)5(SiO4)2(OH)2Sonolite Mn9

2+(SiO4)4(OH,F)2

Hydrotalcite GroupTrigonal carbonates of general formula A6B2(CO3)(OH)16⋅4H2O, A = Mg, Ni; B = Al, Cr3+,Fe3+, Mn2+, Co3+. Compare the Manasseite group; see also 75, 242–243 (1990).

Comblainite (Ni62+Co2

3+(CO3)(OH)16⋅4H2ODesautelsite Mg6Mn2

3+(CO3)(OH)16⋅4H2OHydrotalcite Mg6Al2(CO3)(OH)16⋅4H2OIowaite Mg6Fe2

3+(OH)16Cl2⋅4H2OPyroaurite Mg6Fe2

3+(CO3)(OH)16⋅4H2OReevesite Ni6Fe2

3+(CO3)(OH)16⋅4H2OStichtite Mg6Cr2(CO3)(OH)16⋅4H2OTakovite Ni6Al2(OH)16(CO3,OH)⋅4H2O

Meixnerite, the sulfates Honessite and Wermlandite, and the carbonates Caresite, Charmariteand Quintinite are structurally related to the minerals of this group.

Ilmenite GroupTrigonal oxides of general formula M 2+TiO3, M

2+ = Fe, Mg, Mn, Zn.Ecandrewsite (Zn,Fe2+,Mn2+)TiO3

Geikielite MgTiO3

Ilmenite Fe2+TiO3

Pyrophanite Mn2+TiO3

Joaquinite GroupOrthorhombic and monoclinic titanosilicates of general formula A6(Ti,Nb)2Si8(O,OH)26⋅H2O;A = Ba, Ce, Fe2+, Mn2+, Na, Sr.

Bario-orthojoaquinite (Ba,Sr)4Fe22+Ti2Si8O26⋅H2O

Byelorussite-(Ce) NaMn2+Ba2Ce2Ti2Si8O26(F,OH)⋅H2OJoaquinite-(Ce) Ba2NaCe2Fe2+(Ti,Nb)2Si8O26(OH,F)⋅H2OOrthojoaquinite-(Ce) Ba2NaCe2Fe2+Ti2Si8O26(O,OH)⋅H2OStrontiojoaquinite Sr2Ba2(Na,Fe2+)2Ti2Si8O24(O,OH)2⋅H2OStrontio-orthojoaquinite Sr2Ba2(Na,Fe2+)2Ti2Si8O24(O,OH)2⋅H2O

Kaolinite-Serpentine GroupSilicates, triclinic, monolinic, orthorhombic, trigonal, hexagonal, of general formulaM 2–3Z2O5(OH)4⋅nH2O, M = Al, Fe3+, Fe2+, Mg, Mn2+, Ni, Zn; Z = Al, Fe2+, Si.

Amesite Mg2Al(SiAl)O5(OH)4Antigorite (Mg,Fe2+)3Si2O5(OH)4Berthierine (Fe2+,Fe3+,Mg)2–3(Si,Al)2O5(OH)4

Brindleyite (Ni,Mg,Fe2+)2Al(SiAl)O5(OH)4Clinochrysotile Mg3Si2O5(OH)4Cronstedtite Fe2

2+Fe3+(SiFe3+)O5(OH)4Dickite Al2Si2O5(OH)4Fraipontite (Zn,Al)3(Si,Al)2O5(OH)4Greenalite (Fe2+,Fe3+)2–3Si2O5(OH)4Halloysite Al2Si2O5(OH)4Kaolinite Al2Si2O5(OH)4Kellyite (Mn2+,Mg,Al)3(Si,Al)2O5(OH)4Lizardite Mg3Si2O5(OH)4Manandonite LiAl2(SiAl0.5B0.5)O5(OH)4Nacrite Al2Si2O5(OH)4N_pouite Ni3Si2O5(OH)4Odinite (Fe3+,Mg,Al,Fe2+)2.5(Si,Al)2O5(OH)4Orthochrysotile Mg3Si2O5(OH)4Parachrysotile Mg3Si2O5(OH)4Pecoraite Ni3Si2O5(OH)4

Kieserite GroupMonoclinic sulfates of general formula M 2+SO4⋅H2O, M 2+ = Cu, Fe, Mg, Mn, Ni, Zn.

Dwornikite (Ni,Fe2+)SO4⋅H2OGunningite (Zn,Mn2+)SO4⋅H2OKieserite MgSO4⋅H2OSzmikite Mn2+(SO4)⋅H2OSzomolnokite Fe2+SO4⋅H2O

Lazulite GroupMonoclinic phosphates of general formula A2+B2

3+(PO4)2(OH)2; A2+ = Cu, Fe, Mg; B3+ =

Al, Fe.Barbosalite Fe2+Fe2

3+(PO4)2(OH)2Hentschelite Cu2+Fe2

3+(PO4)2(OH)2Lazulite MgAl2(PO4)2(OH)2Scorzalite (Fe2+,Mg)Al2(PO4)2(OH)2

Linnaeite GroupCubic sulfides of general formula A2+B2

3+X4, A2+ = Co, Cu, Fe, Ni, Zn; B3+ = Co, Cr, Fe, In,

Ni, Sb; X = S, Se. Compare the oxides of Spinel group.Bornhardtite Co2+Co2

3+Se4

Carrollite Cu(Co,Ni)2S4

Daubr_elite Fe2+Cr2S4

Fletcherite Cu(Ni,Co)2S4

Florensovite (Cu,Zn)(Cr,Sb)2S4

Greigite Fe2+Fe23+S4

Indite Fe2+In2S4

Kalininite ZnCr2S4

Linnaeite Co2+Co23+S4

Polydymite NiNi2S4

Siegenite (Ni,Co)3S4

Tr_stedtite Ni3Se4

Tyrrellite (Cu,Co,Ni)3Se4

Violarite Fe2+Ni23+S4

L_llingite GroupOrthorhombic arsenides and antimonides of general formula AB2, A = Co, Fe, Ni; B = As, S,Sb.

Costibite CoSbSL_llingite FeAs2

Nisbite NiSb2

Rammelsbergite NiAs2

Safflorite (Co,Fe)As2

Sein_jokite (Fe,Ni)(Sb,As)2

Lovozerite GroupTrigonal and orthorhombic silicates of general formula A6B2–xC1–ySi6(O,OH)18, A = Na, H; B= Ca, Mn, Fe; C = Ti, Zr.

Imandrite Na6Ca1.5Fe3+Si6O18

Kazakovite Na6(Mn2+,H2)TiSi6O18

Koashvite Na6(Ca,Mn)(Ti,Fe)Si6O18⋅H2OLovozerite Na2Ca(Zr,Ti)Si6(O,OH)18

Petarasite Na5Zr2Si6O18(Cl,OH)⋅2H2OTisinalite Na3H3(Mn2+,Ca,Fe)TiSi6(O,OH)18⋅2H2OZirsinalite Na6(Ca,Mn,Fe2+)ZrSi6O18

Ludwigite GroupOrthorhombic borates of general formula X2Y(BO5), X = Fe2+, Mg, Ni; Y = Al, Fe3+, Mg,Mn3+, Sb, Ti.

Azoproite (Mg,Fe2+)2(Fe3+,Ti,Mg)BO5

Bonaccordite Ni2Fe3+BO5

Chestermanite Mg2(Fe3+,Mg,Al,Sb5+)(BO3)O2

Fredrikssonite Mg2(Mn3+,Fe3+)BO5

Ludwigite Mg2Fe3+BO5

Vonsenite Fe22+Fe3+BO5

Compare Hulsite, Orthopinakiolite, Pinakiolite and Takeuchiite.

Magnetoplumbite GroupHexagonal oxides of general formula AB12O19, A = Ba, Ca, Ce, K, Pb; B = Al, Cr3+, Fe2+,Fe2+, Mg, Mn3+, Ti.

Hawthorneite Ba(Ti3Cr4Fe22+Fe2

3+Mg)O19

Hibonite (Ca,Ce)(Al,Ti,Mg)12O19

Magnetoplumbite Pb(Fe3+,Mn3+)12O19

Ne_ilovite PbZn2(Mn4+,Ti4+)2Fe83+O19

Yimengite K(Cr3+,Ti,Fe3+,Mg)12O19

Manasseite GroupHexagonal carbonates of general formula Mg6B2(CO3)(OH)16⋅4H2O, B = Al, Cr3+, Fe3+.Compare the Hydrotalcite group; see also 75, 242–243 (1990).

Barbertonite Mg6Cr2(CO3)(OH)16⋅4H2OChlormagaluminite (Mg,Fe2+)4Al2(OH)12(Cl2,CO3)⋅2H2OManasseite Mg6Al2(CO3)(OH)16⋅4H2OSj_grenite Mg6Fe2

3+(CO3)(OH)16⋅4H2O

Marcasite GroupOrthorhombic sulfides, selenides, and tellurides of general formula AX2, A = Co, Fe, Ni; X =S, Se, Te. Compare the Pyrite group.

Ferroselite FeSe2

Frohbergite FeTe2

Hastite CoSe2

Kullerudite NiSe2

Marcasite FeS2

Mattagamite CoTe2

Melanterite GroupMonoclinic sulfates of general formula A2+SO4⋅7H2O, A2+ = Co, Cu, Fe, Mn, Zn.

Bieberite CoSO4⋅7H2OBoothite CuSO4⋅7H2OMallardite Mn2+SO4⋅7H2OMelanterite Fe2+SO4⋅7H2OZinc-melanterite (Zn,Cu2+,Fe2+)SO4⋅7H2O

Melilite GroupTetragonal silicates of general formula A2BZSiO7, A = Na, Ca; B = Al, Be, Mg, Zn; Z = Al,Si.

_kermanite Ca2MgSi2O7

Gehlenite Ca2Al(AlSi)O7

Gugiaite Ca2BeSi2O7

Hardystonite Ca2ZnSi2O7

Melilite (Ca,Na)2(Al,Mg)(Si,Al)2O7

Jeffreyite, Leucophanite and Meliphanite are silicates structurally related to the minerals ofthis group.

Melonite GroupTrigonal sulfides and tellurides of general formula AB2, A = Ni, Pd, Pt, Sn; B = Bi, S, Se, Te.

Berndtite SnS2

Kitkaite NiTeSe

Melonite NiTe2

Merenskyite (Pd,Pt)(Te,Bi)2

Moncheite (Pt,Pd)(Te,Bi)2

Meta-autunite GroupTetragonal or orthorhombic uranyl phosphates and arsenates of general formulaA(UO2)2(XO4)2⋅nH2O; A = Ba, Ca, Co, Cu2+, Fe2+, (H3O)2, K2, Mg, (NH4)2, Zn; X = As5+,P5+.

Abernathyite K2(UO2)2(AsO4)2⋅8H2OBassetite Fe2+(UO2)2(PO4)2⋅8H2OChernikovite (H3O)2(UO2)2(PO4)2⋅6H2OMeta-ankoleite K2(UO2)2(PO4)2⋅6H2OMeta-autunite Ca(UO2)2(PO4)2⋅2–6H2OMetaheinrichite Ba(UO2)2(AsO4)2⋅8H2OMetakahlerite Fe2+(UO2)2(AsO4)2⋅8H2OMetakirchheimerite Co(UO2)2(AsO4)2⋅8H2OMetalodevite Zn(UO2)2(AsO4)2⋅10H2OMetanov__ekite Mg(UO2)2(AsO4)2⋅4–8H2OMetatorbernite Cu2+(UO2)2(PO4)2⋅8H2OMeta-uranocircite Ba(UO2)2(PO4)2⋅8H2OMeta-uranospinite Ca(UO2)2(AsO4)2⋅8H2OMetazeunerite Cu2+(UO2)2(AsO4)2⋅8H2OSodium uranospinite (Na2,Ca)(UO2)2(AsO4)2⋅5H2OUramphite (NH4)2(UO2)2(PO4)2⋅6H2O

Mica GroupThe nomenclature of this group was revised by a subcommittee of the Commission on NewMinerals and Mineral Names of the International Mineralogical Association. The report ofthis subcommittee by Rieder et al. (1998) has been published in many major mineralogicaljournals; for example, Canadian Mineralogist 36, 905–912 (1998). Readers interested inmore details of the mica group minerals should consult this report.

The mica group minerals are pseudohexagonal, monoclinic layer silicates. The generalsimplified formula can be written as: IM2–3h1–0T4O10A2, where I is commonly K, Na, Ca, Cs,NH4, Rb, Ba; M is commonly Li, Fe2+, Fe3+, Mg, Al, Ti, Mn2+, Mn3+, Zn, Cr, V; hrepresents a vacancy; T is commonly Al, Fe3+, Si, Be, B; and A is commonly F, OH, Cl, O(oxy-micas), S. The most frequently encountered elements are set in bold face; note thatother substitutions are possible. The following tabulation gives the ideal formulae for endmember species except where noted. Mica group minerals are classified into three differenttypes: normal micas (either dioctahedral or trioctahedral), brittle micas (either dioctahedral ortrioctahedral) and interlayer-deficient micas (either dioctahedral or trioctahedral). Thefollowing abbreviations are used below: di. = dioctahedral micas br. = brittle micas tr. = trioctahedral micas in. = interlayer-deficient micas

Aluminoceladonite (di.) KAl(Mg,Fe2+)hSi4O10(OH)2Anandite (tr.) (br.) BaFe3

2+Fe3+Si3O10S(OH)Annite (tr.) KFe3

2+AlSi3O10(OH)2Aspidolite (tr.) NaMg3AlSi3O10(OH)2Biotite (tr.) (a series name) compositions on, or close to, the Annite-Phlogopite and

Siderophyllite-Eastonite joins; dark micas without lithiumBityite (tr.) (br.) CaLiAl2BeAlSi2O10(OH)2Boromuscovite (di.) KAl2hBSi3O10(OH)2Brammallite (di.) (in.) (a series name) Na0.65Al2.0hAl0.65Si3.35O10(OH)2Celadonite (di.) KFe3+(Mg,Fe2+)hSi4O10(OH)2Chernykhite (di.) (br.) BaV2hAl2Si2O10(OH)2Chromphyllite (di.) KCr2hAlSi3O10(OH)2Clintonite (tr.) (br.) CaMg2AlAl3SiO10(OH)2Eastonite (tr.) KMg2AlAl2Si2O10(OH)2Ephesite (tr.) NaLiAl2Al2Si2O10(OH)2Ferro-aluminoceladonite (di.) KAl(Fe2+,Mg)hSi4O10(OH)2Ferroceladonite (di.) KFe3+(Fe2+,Mg)hSi4O10(OH)2Glauconite (di.) (in.) (a series name) K0.8R

3+1.33R2+0.67hAl0.13Si3.87O10(OH)2

Hendricksite (tr.) KZn3AlSi3O10(OH)2Illite (di.) (in.) (a series name) K0.65Al2.0hAl0.65Si3.35O10(OH)2Kinoshitalite (tr.) (br.) BaMg3Al2Si2O10(OH)2Lepidolite (tr.) (a series name) compositions on, or close to, the Trilithionite-Polylithionite join; light micas with substantial lithiumMargarite (di.) (br.) CaAl2hAl2Si2O10(OH)2Masutomilite (tr.) KLiAlMn2+AlSi3O10F2

Montdorite (tr.) (not an end member) KFe2+1.5Mn2+0.5Mg0.5h0.5Si4O10F2

Muscovite (di.) KAl2hAlSi3O10(OH)2Nanpingite (di.) CsAl2hAlSi3O10(OH)2Norrishite (tr.) KLiMn2

3+Si4O12

Paragonite (di.) NaAl2hAlSi3O10(OH)2Phengite (di.) (a series name) potassic compositions between, or close to, the

joins Muscovite-Aluminoceladonite and Muscovite-CeladonitePhlogopite (tr.) KMg3AlSi3O10(OH)2Polylithionite (tr.) KLi2AlSi4O10F2

Preiswerkite (tr.) NaMg2AlAl2Si2O10(OH)2Roscoelite (di.) KV2hAlSi3O10(OH)2Siderophyllite (tr.) KFe2

2+AlAl2Si2O10(OH)2Tainiolite (tr.) KLiMg2Si4O10F2

Tetra-ferri-annite (tr.) KFe32+Fe3+Si3O10(OH)2

Tetra-ferriphlogopite (tr.) KMg3Fe3+Si3O10(OH)2Tobelite (di.) (NH4)Al2hAlSi3O10(OH)2Trilithionite (tr.) (not an end member) KLi1.5Al1.5AlSi3O10F2

Wonesite (tr.) (in.) (not an end member) Na0.5h0.5Mg2.5Al0.5AlSi3O10(OH)2Zinnwaldite trioctahedral micas on, or close to, the Siderophyllite-Polylithionite join; dark micas containing lithium

Mixite GroupHexagonal arsenates and phosphates of general formula ACu6(XO4)3(OH)6⋅3H2O, A = Al,Bi, Ca, Ce, La, Nd, Y; X = As, P.

Agardite-(La) (La,Ca)Cu6(AsO4)3(OH)6⋅3H2OAgardite-(Y) (Y,Ca)Cu6(AsO4)3(OH)6⋅3H2OGoudeyite (Al,Y)Cu6

2+(AsO4)3(OH)6⋅3H2OMixite BiCu6

2+(AsO4)3(OH)6⋅3H2OPetersite-(Y) (Y,Ce,Nd,Ca)Cu6

2+(PO4)3(OH)6⋅3H2O

Monazite GroupMonoclinic arsenates, phosphates, silicates, of general formula ABO4, A = Bi, Ca, Ce, La,Nd, Th; B = As5+, P5+, Si4+.

Brabantite Ca0.5Th0.5(PO4)Cheralite-(Ce) (Ce,Ca,Th)(P,Si)O4

Gasparite-(Ce) (Ce,La,Nd)AsO4

Huttonite ThSiO4

Monazite-(Ce) (Ce,La,Nd,Th)PO4

Monazite-(La) (La,Ce,Nd)PO4

Monazite-(Nd) (Nd,La,Ce)PO4

Rooseveltite BiAsO4

Montgomeryite GroupMonoclinic phosphates of general formula Ca4A

2+B43+(PO4)6(OH)4⋅12H2O, A2+ = Fe, Mg,

Mn; B3+ = Al, Fe.Calcioferrite Ca4Fe2+(Fe3+,Al)4(PO4)6(OH)4⋅13H2OKingsmountite (Ca,Mn2+)4(Fe2+,Mn2+)Al4(PO4)6(OH)4⋅12H2OMontgomeryite Ca4MgAl4(PO4)6(OH)4⋅12H2OZodacite Ca4Mn2+Fe4

3+(PO4)6(OH)4⋅12H2O

Montmorillonite GroupSee Smectite group.

Nickeline GroupHexagonal antimonides, arsenides, bismuthides, selenides, stannides, and tellurides of generalformula AX, A = Co, Ni, Pd, Pt; X = As, Bi, Sb, Se, Sn, Te.

Breithauptite NiSbFreboldite CoSeImgreite NiTe (?)Langisite (Co,Ni)AsNickeline NiAsNiggliite PtSnSederholmite b-NiSeSobolevskite PdBiStumpflite Pt(Sb,Bi)Sudburyite (Pd,Ni)Sb

Nordite GroupOrthorhombic silicates of general formula Na3Sr(REE)BSi6O17, where REE = Ce or La, B =Fe2+, Mn2+, or Zn.

Ferronordite-(Ce) Na3SrCeFe2+Si6O17

Manganonordite-(Ce) Na3SrCeMn2+Si6O17

Nordite-(Ce) Na3SrCeZnSi6O17

Nordite-(La) Na3SrLaZnSi6O17

Olivine GroupOrthorhombic silicates of general formula A2

2+SiO4, A2+ = Fe, Mg, Mn, Ni.

Fayalite Fe22+SiO4

Forsterite Mg2SiO4

Liebenbergite (Ni,Mg)2SiO4

Tephroite Mn22+SiO4

Osumilite GroupHexagonal and orthorhombic silicates of general formula A1–2B2–3C3Z12O30⋅nH2O, A = Ba,Ca, K, Na; B = Fe2+, Li, Mg, Mn2+, Na, Sn, Ti, Y, Zn, Zr; C = Al, B, Be, Fe2+, Fe3+, Li, Mg,Zn; Z = Al, Si.

Armenite (?) BaCa2Al6Si9O30⋅2H2OBerezanskite KLi3Ti2Si12O30

Brannockite KLi3Sn2Si12O30

Chayesite K(Mg,Fe2+)4Fe3+Si12O30

Darapiosite KNa2Li(Mn,Zn)2ZrSi12O30

Dusmatovite K(K,Na,h)(Mn2+,Y,Zr)2(Zn,Li)3Si12O30

Eifelite KNa3Mg4Si12O30

Emeleusite Na4Li2Fe23+Si12O30

Merrihueite (K,Na)2(Fe2+,Mg)5Si12O30

Milarite KCa2AlBe2Si12O30⋅0.5H2OOsumilite (K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30

Osumilite-(Mg) (K,Na)(Mg,Fe2+)2(Al,Fe3+)3(Si,Al)12O30

Poudretteite KNa2B3Si12O30

Roedderite (Na,K)2(Mg,Fe2+)5Si12O30

Sogdianite (K,Na)2(Li,Fe2+)3(Zr,Ti,Fe3+)Si12O30

Sugilite KNa2(Fe2+,Mn2+,Al)2Li3Si12O30

Yagiite (Na,K)1.5Mg2(Al,Mg)3(Si,Al)12O30

Overite GroupOrthorhombic phosphates of general formula ABC(PO4)2(OH)⋅2–4H2O, A = Ca, Mn, Zn; B= Mg, Fe2+, Mn2+; C = Al, Fe3+.

Lun’okite (Mn2+,Ca)(Mg,Fe2+,Mn2+)Al(PO4)2(OH)⋅4H2OManganosegelerite (Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH)⋅4H2OOverite CaMgAl(PO4)2(OH)⋅4H2OSegelerite CaMgFe3+(PO4)2(OH)⋅4H2O

Wilhelmvierlingite CaMn2+Fe3+(PO4)2(OH)⋅2H2O

Paravauxite GroupTriclinic phosphates of general formula AB2(PO4)2(OH)2⋅8H2O orAB2(PO4)2(OH)3⋅7–8H2O, A = Mg, Fe2+, Mn2+, Fe3+; B = Al, Fe3+, Cr3+.

Gordonite MgAl2(PO4)2(OH)2⋅8H2OLaueite Mn2+Fe2

3+(PO4)2(OH)2⋅8H2OParavauxite Fe2+Al2(PO4)2(OH)2⋅8H2OSigloite Fe3+Al2(PO4)2(OH)3⋅7H2OUshkovite MgFe2

3+(PO4)2(OH)2⋅8H2O

Pentlandite GroupCubic sulfides of general formula AB8X8, A = Ag, Cd, Co, Fe, Mn, Ni, Pb; B = Co, Cu, Fe,Ni; X = S, Se.

Argentopentlandite Ag(Fe,Ni)8S8

Cobalt pentlandite Co9S8

Geffroyite (Ag,Cu,Fe)9(Se,S)8

Manganese-shadlunite (Mn,Pb,Cd)(Cu,Fe)8S8

Pentlandite (Fe,Ni)9S8

Shadlunite (Pb,Cd)(Fe,Cu)8S8

Periclase GroupCubic oxides of general formula M 2+O, M 2+ = Cd, Fe, Mg, Mn, Ni.

Bunsenite NiOManganosite Mn2+OMonteponite CdOPericlase MgOW_stite Fe2+O

Perovskite GroupPseudocubic oxides, orthorhombic, or monoclinic, of general formula ABO3, A = Ca, Ce, Na,Sr; B = Nb, Ti, Fe.

Latrappite (Ca,Na)(Nb,Ti,Fe)O3

Loparite-(Ce) (Ce,Na,Ca)(Ti,Nb)O3

Lueshite NaNbO3

Perovskite CaTiO3

Tausonite SrTiO3

Picromerite GroupMonoclinic sulfates of general formula A2B

2+(SO4)2⋅6H2O, A = K, (NH4);B2+ = Cu, Fe, Mg, Ni.

Boussingaultite (NH4)2Mg(SO4)2⋅6H2OCyanochroite K2Cu2+(SO4)2⋅6H2OMohrite (NH4)2Fe2+(SO4)2⋅6H2ONickel-boussingaultite (NH4)2(Ni,Mg)(SO4)2⋅6H2O

Picromerite K2Mg(SO4)2⋅6H2O

Plumbogummite Group = Crandallite Group.

Pumpellyite GroupMonoclinic silicates of general formula Ca2XY2(SiO4)(Si2O7)(OH)2⋅H2O, X = Al, Fe2+, Fe3+,Mg, Mn2+; Y = Al, Fe3+, Cr3+, Mn3+. See Can. Min. 12, 219–223 (1973).

Julgoldite-(Fe2+) Ca2Fe2+(Fe3+,Al)2(SiO4)(Si2O7)(OH)2⋅H2OOkhotskite Ca2(Mn2+,Mg)(Mn3+,Al,Fe3+)2Si3O10(OH)4Pumpellyite-(Fe2+) Ca2Fe2+Al2(SiO4)(Si2O7)(OH)2⋅H2OPumpellyite-(Fe3+) Ca2(Fe3+,Mg,Fe2+)(AlFe3+)2(SiO4)(Si2O7)(OH)2⋅H2OPumpellyite-(Mg) Ca2MgAl2(SiO4)(Si2O7)(OH)2⋅H2OPumpellyite-(Mn2+) Ca2(Mn2+,Mg)(Al,Mn3+,Fe)2(SiO4)(Si2O7)(OH)2⋅H2OShuiskite Ca2(Mg,Al)(Cr,Al)2(SiO4)(Si2O7)(OH)2⋅H2O

Pyrite GroupCubic sulfides, arsenides, etc., of general formula AXY or AX2, A = Au, Co, Cu, Fe, Mn,Ni, Os, Pd, Pt, Ru; X and Y = As, Bi, S, Sb, Se, Te. Compare the Marcasite group.

Aurostibite AuSb2

Cattierite CoS2

Dzharkenite FeSe2

Erlichmanite OsS2

Fukuchilite (Cu,Fe)S2

Geversite Pt(Sb,Bi)2

Hauerite MnS2

Insizwaite Pt(Bi,Sb)2

Kru_aite CuSe2

Laurite RuS2

Maslovite (Pt,Pd)(Bi,Te)2

Michenerite PdBiTePenroseite (Ni,Co,Cu)Se2

Pyrite FeS2

Sperrylite PtAs2

Testibiopalladite Pd(Sb,Te)TeTrogtalite CoSe2

Vaesite NiS2

Villaman_nite (Cu,Ni,Co,Fe)S2

Pyrochlore GroupCubic complex oxides of general formula A1–2B2O6(O,OH,F)⋅nH2O; A = Ba, Bi, Ca, Ce, Cs,K, Na, Pb, Sb3+, Sn, Sr, Th, U, Y, Zr; B = Fe, Nb, Sn, Ta, Ti, W. Pyrochlore subgroup hasNb > Ta, (Nb + Ta) > 2Ti; Microlite subgroup has Ta > Nb, (Ta + Nb) > 2Ti; Betafitesubgroup has 2Ti > (Nb + Ta). Compare the closely related Stibiconite group.

Bariomicrolite Ba2(Ta,Nb)2(O,OH)7

Bariopyrochlore (Ba,Sr)2(Nb,Ti)2(O,OH)7

Betafite (Ca,Na,U)2(Ti,Nb,Ta)2O6(OH)Bismutomicrolite (Bi,Ca)(Ta,Nb)2O6(OH)Calciobetafite Ca2(Ti,Nb)2(O,OH)7

Ceriopyrochlore-(Ce) (Ce,Ca,Y)2(Nb,Ta)2O6(OH,F)Cesstibtantite (Cs,Na)Sb3+Ta4O12

Kalipyrochlore (K,Sr)2–xNb2O6(O,OH)⋅nH2OMicrolite (Ca,Na)2Ta2O6(O,OH,F)Natrobistantite (Na,Cs)Bi(Ta,Nb,Sb)4O12

Plumbobetafite (Pb,U,Ca)(Ti,Nb)2O6(OH,F)Plumbomicrolite (Pb,Ca,U)2Ta2O6(OH)Plumbopyrochlore (Pb,Y,U,Ca)2–xNb2O6(OH)Pyrochlore (Ca,Na)2Nb2O6(OH,F)Stannomicrolite (Sn2+,Fe2+,Mn2+)2(Ta,Nb,Sn4+)2(O,OH)7

Stibiobetafite (Sb3+,Ca)2(Ti,Nb,Ta)2(O,OH)7

Stibiomicrolite (Sb,Ca,Na)2(Ta,Nb)2O7

Strontiopyrochlore Sr2Nb2(O,OH)7

Uranmicrolite (U,Ca,Ce)2(Ta,Nb)2O6(OH,F)Uranpyrochlore (U,Ca,Ce)2(Nb,Ta)2O6(OH,F)Yttrobetafite-(Y) (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH)Yttropyrochlore-(Y) (Y,Na,Ca,U)1–2(Nb,Ta,Ti)2(O,OH)7

Ferritungstite (cub.), Jixianite (cub.) and Zirkelite (mon.) are structurally related oxides;Ralstonite is an isostructural halide. The nomenclature of the group, with recommendationsby the I.M.A. Commission on New Minerals and Mineral Names are given in 62, 403–410(1977).

Pyroxene GroupOrthorhombic or monoclinic silicates of general formula ABZ2O6, A = Ca, Fe2+, Li, Mg,Mn2+, Na, Zn; B = Al, Cr3+, Fe2+, Fe3+, Mg, Mn2+, Sc, Ti, V3+; Z = Al, Si.

Aegirine NaFe3+Si2O6

Aegirine-augiteAugite (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6

Clinoenstatite Mg2Si2O6

Clinoferrosilite (Fe2+,Mg)2Si2O6

Diopside CaMgSi2O6

Donpeacorite (Mn2+,Mg)MgSi2O6

Enstatite Mg2Si2O6

Esseneite CaFe3+AlSiO6

Ferrosilite (Fe2+,Mg)2Si2O6

Hedenbergite CaFe2+Si2O6

Jadeite Na(Al,Fe3+)Si2O6

Jervisite (Na,Ca,Fe2+)(Sc,Mg,Fe2+)Si2O6

Johannsenite CaMn2+Si2O6

Kanoite (Mn2+,Mg)2Si2O6

Kosmochlor NaCr3+Si2O6

Namansilite NaMn3+Si2O6

Natalyite Na(V3+,Cr3+)Si2O6

Omphacite a clinopyroxenePetedunnite Ca(Zn,Mn2+,Fe2+,Mg)Si2O6

Pigeonite (Mg,Fe2+,Ca)(Mg,Fe2+)Si2O6

Spodumene LiAlSi2O6

Nchwaningite is structurally related. The nomenclature of the group is in accord with therecommendations of the I.M.A. Commission on New Minerals and Mineral Names, 73,1123–1133 (1988).

Rhabdophane GroupHexagonal or pseudo-hexagonal phosphates, with general formula XZO4⋅1–2H2O, X = Ca,Ce, Fe3+. La, Pb, Th; Z = P, S.

Brockite (Ca,Th,Ce)(PO4)⋅H2OGrayite (Th,Pb,Ca)PO4⋅H2ONingyoite (U,Ca,Ce)2(PO4)2⋅1–2H2ORhabdophane-(Ce) (Ce,La)PO4⋅H2ORhabdophane-(La) (La,Ce)PO4⋅H2ORhabdophane-(Nd) (Nd,Ce,La)PO4⋅H2OTristramite (Ca,U4+,Fe3+)(PO4,SO4)⋅2H2O

Rosasite GroupMonoclinic or triclinic carbonates of general formula A2(CO3)(OH)2 or AB(CO3)(OH)2, Aand B = Co, Cu, Mg, Ni, Zn.

Glaukosphaerite (Cu,Ni)2(CO3)(OH)2

Kolwezite (Cu2+,Co)2(CO3)(OH)2

Mcguinnessite (Mg,Cu2+)2(CO3)(OH)2

Nullaginite Ni2(CO3)(OH)2

Rosasite (Cu2+,Zn)2(CO3)(OH)2

Zincrosasite (Zn,Cu2+)2(CO3)(OH)2

Pokrovskite is a related mineral.

Roselite GroupMonoclinic arsenates of general formula Ca2M

2+(AsO4)2⋅2H2O, M 2+ = Co, Mg, Mn, Zn.Brandtite Ca2(Mn2+,Mg)(AsO4)2⋅2H2ORoselite Ca2(Co2+,Mg)(AsO4)2⋅2H2OWendwilsonite Ca2(Mg,Co)(AsO4)2⋅2H2OZincroselite Ca2Zn(AsO4)2⋅2H2O

Rozenite GroupMonoclinic sulfates of general formula A2+SO4⋅4H2O, A2+ = Co, Fe, Mg, Mn, Ni, Zn.

Aplowite (Co,Mn2+,Ni)SO4⋅4H2OBoyleite (Zn,Mg)SO4⋅4H2OIlesite (Mn2+,Zn,Fe2+)SO4⋅4H2ORozenite Fe2+SO4⋅4H2OStarkeyite MgSO4⋅4H2O

Rutile GroupTetragonal oxides of general formula M 4+O2, M

4+ = Ge, Mn, Pb, Si, Sn, Te, Ti.Argutite GeO2

Cassiterite SnO2

Paratellurite TeO2

Plattnerite PbO2

Pyrolusite Mn4+O2

Rutile TiO2

Squawcreekite (Fe3+,Sb5+,Sn2+)O2

Stishovite SiO2

Sellaite is structurally related to the Rutile group.

Scapolite GroupThe tetragonal silicate series Na4Al3Si9O24Cl—Ca4Al6Si6O24(CO3,SO4).

Marialite 3NaAlSi3O8⋅NaClMeionite 3CaAl2Si2O8⋅CaCO3

Schoenfliesite GroupCubic hydroxides of general formula M 2+Sn4+(OH)6, M

2+ = Ca, Cu, Fe, Mg, Mn, Zn.Burtite CaSn(OH)6

Mushistonite (Cu2+,Zn,Fe2+)Sn4+(OH)6Natanite Fe2+Sn4+(OH)6Schoenfliesite MgSn4+(OH)6Vismirnovite ZnSn4+(OH)6Wickmanite Mn2+Sn4+(OH)6

Compare the Stottite group.

Smectite GroupMonoclinic silicates of general formula X0.3Y2–3Z4O10(OH)2⋅nH2O, X (exchangeable ions) =Ca/2, Li, Na; Y = Al, Cr3+, Cu2+, Fe2+, Fe3+, Li, Mg, Ni, Zn; Z = Al, Si.

Aliettite a clay mineralBeidellite (Na,Ca0.5)0.3Al2(Si,Al)4O10(OH)2⋅nH2OHectorite Na0.3(Mg,Li)3Si4O10(F,OH)2

Montmorillonite (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2⋅nH2ONontronite Na0.3Fe2

3+(Si,Al)4O10(OH)2⋅nH2OSaponite (Ca/2,Na)0.3(Mg,Fe2+)3(Si,Al)4O10(OH)2⋅4H2OSauconite Na0.3Zn3(Si,Al)4O10(OH)2⋅4H2OStevensite (Ca/2)0.3Mg3Si4O10(OH)2Swinefordite (Ca,Na)0.3(Li,Mg)2(Si,Al)4O10(OH,F)2⋅2H2OVolkonskoite Ca0.3(Cr3+,Mg,Fe3+)2(Si,Al)4O10(OH)2⋅4H2OYakhontovite (Ca,Na)0.5(Cu2+,Fe2+,Mg)2Si4O10(OH)2⋅3H2O

Compare Brammallite, Illite and Rectorite.

Sodalite Group

Cubic silicates of general formula (Na,Ca)4–8Al6Si6(O,S)24(SO4,Cl,(OH),S)1–2⋅nH2O.Ha_yne (Na,Ca)4–8Al6Si6(O,S)24(SO4,Cl)1–2

Lazurite (Na,Ca)7–8(Al,Si)12(O,S)24[(SO4),Cl2,(OH)2]Nosean Na8Al6Si6O24(SO4)⋅H2OSodalite Na8Al6Si6O24Cl2

Sphalerite GroupCubic sulfides, selenides, and tellurides of general formula AX, A = Cd, Fe, Hg, Zn; X = S,Se, Te.

Coloradoite HgTeHawleyite CdSMetacinnabar HgSSphalerite (Zn,Fe)SStilleite ZnSeTiemannite HgSe

Spinel GroupCubic oxides of general formula AB2O4, A = Co, Cu, Fe2+, Ge, Mg, Mn2+, Ni, Ti, Zn; B =Al, Cr3+, Fe2+, Fe3+, Mg, Mn3+, Ti, V3+.

Brunogeierite (Ge2+,Fe2+)Fe23+O4

Chromite Fe2+Cr2O4

Cochromite (Co,Ni,Fe2+)(Cr,Al)2O4

Coulsonite Fe2+V23+O4

Cuprospinel (Cu2+,Mg)Fe23+O4

Franklinite (Zn,Mn2+,Fe2+)(Fe3+,Mn3+)2O4

Gahnite ZnAl2O4

Galaxite (Mn2+,Fe2+,Mg)(Al,Fe3+)2O4

Hercynite Fe2+Al2O4

Jacobsite (Mn2+,Fe2+,Mg)(Fe3+,Mn3+)2O4

Magnesiochromite MgCr2O4

Magnesiocoulsonite MgV2O4

Magnesioferrite MgFe23+O4

Magnetite Fe2+Fe23+O4

Manganochromite (Mn2+,Fe2+)(Cr3+,V3+)2O4

Nichromite (Ni,Co,Fe2+)(Cr3+,Fe3+,Al)2O4

Qandilite (Mg,Fe2+)2(Ti,Fe2+,Al)O4

Spinel MgAl2O4

Trevorite NiFe23+O4

Ulv_spinel TiFe22+O4

Vuorelainenite (Mn2+,Fe2+)(V3+,Cr3+)2O4

Zincochromite ZnCr23+O4

Ringwoodite is an isostructural silicate. Compare the sulfides of the Linnaeite group.

Stannite GroupTetragonal sulfides and selenides of general formula A3BX4, A = Ag, Cd, Cu, Fe, Hg, Zn; B= As, Ge, In, Sb, Sn; X = S, Se.

Briartite Cu2(Zn,Fe)GeS4

_erny;ite Cu2CdSnS4

Famatinite Cu3SbS4

Hocartite Ag2FeSnS4

Kuramite Cu3SnS4

Luzonite Cu3AsS4

Permingeatite Cu3SbSe4

Pirquitasite Ag2ZnSnS4

Stannite Cu2FeSnS4

Velikite Cu2HgSnS4

K_sterite and Ferrok_sterite are structurally related minerals.

Stibiconite GroupCubic oxides of general formula A1–2B2O6(O,OH,F), A = Ag, Bi, Ca, Cu, Fe2+, Fe3+, K,Mn2+, Na, Pb, Sb3+; B = Fe3+, Sb5+, Ti. Compare with the Pyrochlore group.

Bindheimite Pb2Sb2O6(O,OH)Bismutostibiconite Bi(Sb5+,Fe3+)2O7

Partzite Cu22+Sb2+(O,OH)7 (?)

Rom_ite (Ca,Fe2+,Mn2+,Na)2(Sb,Ti)2O6(O,OH,F)Stetefeldtite Ag2Sb2(O,OH)7 (?)Stibiconite Sb3+Sb2

5+O6(OH)Jixianite is a structurally related lead tungsten oxide.

Stottite GroupTetragonal hydroxides of general formula AB(OH)6, A = Fe2+, Fe3+, Mn2+, Na; B = Ge4+,Sn4+, Sb5+.

Jeanbandyite (Fe3+,Mn2+)Sn4+(OH)6Mopungite NaSb5+(OH)6Stottite Fe2+Ge4+(OH)6Tetrawickmanite Mn2+Sn4+(OH)6

Compare the cubic minerals of the Schoenfliesite group.

Tapiolite GroupSee Ferrotapiolite group.

Tetradymite GroupTrigonal selenides and tellurides of general formula A2X3, A = Bi, Sb; X = S, Se, Te.

Kawazulite Bi2(Te,Se,S)3

Paraguanajuatite Bi2(Se,S)3

Skippenite Bi2Se2TeTellurantimony Sb2Te3

Tellurobismuthite Bi2Te3

Tetradymite Bi2Te2S

Tetrahedrite GroupCubic sulfides, selenides, and tellurides of general formula A12B4X13, A = Ag, Cu, Fe, Hg,

Zn; B = As, Sb, Te; X = S, Se, Te.Argentotennantite (Ag,Cu)10(Zn,Fe)2(As,Sb)4S13

Freibergite (Ag,Cu,Fe)12(Sb,As)4S13

Giraudite (Cu,Zn,Ag)12(As,Sb)4(Se,S)13

Goldfieldite Cu12(Te,Sb,As)4S13

Hakite (Cu,Hg)12Sb4(Se,S)13

Tennantite (Cu,Ag,Fe,Zn)12As4S13

Tetrahedrite (Cu,Fe,Ag,Zn)12Sb4S13

Tourmaline GroupTrigonal borosilicates of general formula WX3Y6(BO3)3Si6O18(O,OH,F)4,W = Ca, K, Na; X = Al, Fe2+, Fe3+, Li, Mg, Mn2+; Y = Al, Cr3+, Fe+3, V3+.

Buergerite NaFe33+Al6(BO3)3Si6O18(O,F)4

Chromdravite NaMg3(Cr,Fe3+)6(BO3)3Si6O18(OH)4Dravite NaMg3Al6(BO3)3Si6O18(OH)4Elbaite Na(Li,Al)3Al6(BO3)3Si6O18(OH)4Feruvite Ca(Fe2+,Mg)3(Al,Mg)6(BO3)3Si6O18(OH)4Foitite h[Fe2

2+(Al,Fe3+)]Al6Si6O18(BO3)3(OH)4Liddicoatite Ca(Li,Al)3Al6(BO3)3Si6O18(O,OH,F)4

Olenite NaAl3Al6(BO3)3Si6O18(O,OH)4

Povondraite NaFe33+Fe6

3+(BO3)3(Si6O18)(OH,O)4

Schorl NaFe32+Al6(BO3)3Si6O18(OH)4

Uvite (Ca,Na)(Mg,Fe2+)3Al5Mg(BO3)3Si6O18(OH,F)4

Tsumcorite GroupMonoclinic and triclinic arsenates, phosphates, vanadates, and sulfates with the generalformula: (M1)(M2)2(XO4)2(OH,H2O)2, where M1 is Pb, Ca, or Na; M2 is Cu, Zn, Fe3+,Co, Mn3+, and X is As, P, V, and S.

Ferrilotharmeyerite Ca(Fe3+,Zn)2(AsO4)2(OH,H2O)2 mon.Gartrellite Pb[(Cu,Zn)(Fe3+,Zn,Cu)](AsO4)2(OH,H2O)2 tric.Helmutwinklerite Pb(Zn,Cu)2(AsO4)2⋅2H2O tric.Lotharmeyerite Ca(Mn3+,Zn)2(AsO4)2(OH,H2O)2 mon.Mawbyite Pb(Fe3+,Zn)2(AsO4)2(OH,H2O)2 mon.Mounanaite PbFe2

3+(VO4)2(OH)2 mon.Natrochalcite NaCu2(SO4)2(OH,H2O)2 mon.Phosphogartrellite PbCuFe3+(PO4)2(OH,H2O)2 tric.Thometzekite Pb(Cu2+,Zn)2(AsO4)2⋅2H2O tric.(?)Tsumcorite Pb(Zn,Fe3+)2(AsO4)2(OH,H2O)2 mon.

Turquoise GroupTriclinic phosphates of general formula AB6(PO4)xPO3(OH)2–x(OH)8⋅4H2O,A = Ca, Cu2+, Fe2+, Zn; B = Al, Fe3+, Cr2+.

Aheylite (Fe2+,Zn)Al6(PO4)4(OH)8⋅4H2O

Chalcosiderite Cu2+Fe63+(PO4)4(OH)8⋅4H2O

Coeruleolactite (Ca,Cu2+)Al6(PO4)4(OH)8⋅4–5H2OFaustite (Zn,Cu2+)Al6(PO4)4(OH)8⋅4H2OPlanerite Al6(PO4)2(PO3OH)2(OH)8⋅4H2OTurquoise Cu2+Al6(PO4)4(OH)8⋅4H2O

Variscite GroupOrthorhombic arsenates and phosphates of general formula AXO4⋅2H2O,A = Al, Fe3+, Cr3+, In3+; X = As, P.

Mansfieldite AlAsO4⋅2H2OScorodite Fe3+AsO4⋅2H2OStrengite Fe3+PO4⋅2H2OVariscite AlPO4⋅2H2OYanomamite InAsO4⋅2H2O

Vivianite GroupMonoclinic arsenates and phosphates of general formula A3

2+(XO4)2⋅8H2O, A2+ = Co, Fe,Mg, Mn, Ni, Zn; X = As, P.

Annabergite Ni3(AsO4)2⋅8H2OArupite Ni3(PO4)2⋅8H2OBari_ite (Mg,Fe2+)3(PO4)2⋅8H2OErythrite Co3(AsO4)2⋅8H2OH_rnesite Mg3(AsO4)2⋅8H2OK_ttigite Zn3(AsO4)2⋅8H2OParasymplesite Fe3

2+(AsO4)2⋅8H2OVivianite Fe3

2+(PO4)2⋅8H2OBobierrite and Manganese-h_rnesite are related minerals, with b-axes twice those of mineralsof this group.

Whiteite GroupMonoclinic phosphates of general formula AB2+CX2(PO4)4(OH)2⋅8H2O,A = Ca, Mn2+; B2+ = Mg, Mn, Fe, Zn; C = Mg, Fe2+; X = Al, Fe3+.

Jahnsite-(CaMnFe) CaMn2+Fe23+Fe2

3+(PO4)4(OH)2⋅8H2OJahnsite-(CaMnMg) CaMn2+(Mg,Fe2+)2Fe2

2+(PO4)4(OH)2⋅8H2OJahnsite-(CaMnMn) CaMn2+Mn2

2+Fe23+(PO4)4(OH)2⋅8H2O

Keckite Ca(Mn2+,Zn)2Fe33+(PO4)4(OH)3⋅2H2O

Rittmanite (Mn2+,Ca)Mn2+(Fe2+,Mn2+)2(Al,Fe3+)2(PO4)4(OH)2⋅8H2OWhiteite-(CaFeMg) Ca(Fe2+,Mn2+)Mg2Al2(PO4)4(OH)2⋅8H2OWhiteite-(CaMnMg) CaMn2+Mg2Al2(PO4)4(OH)2⋅8H2OWhiteite-(MnFeMg) (Mn2+,Ca)(Fe2+,Mn2+)Mg2Al2(PO4)4(OH)2⋅8H2O

Zeolite GroupThis group has been the subject of a major review by a subcommittee of the Commission onNew Minerals and Mineral Names of the International Mineralogical Association. The

subcommittee, headed by Dr. Douglas S. Coombs, has published its report in severaljournals; for example, Coombs et al. (1997) Canadian Mineralogist 35, 1571–1606 wheredetailed references are given for all of the species. The report is discussed in a summaryarticle by Mandarino (1999) in the Mineralogical Record 30, 5–6. We recommend thatreaders interested in more details about this group of minerals read the report and the article.

Zeolite minerals are defined as silicates having framework structures which contain opencavities in the form of channels and cages. These are usually occupied by H2O molecules andextra-framework cations that are commonly exchangeable. In many zeolites, not only do theextra-framework cations vary widely, but so also does the Al:Si ratio. This in turn changesthe total extra-framework cation charge and commonly the number of extra-frameworkcations. The number of H2O molecules is also variable; as the number of extra-frameworkcations increases, H2O tends to decrease. The formulae given are therefore to be regarded asno more than simplified representative formulae. The crystallography varies greatly withinthe zeolite group and species fall into all of the crystal systems. The report establishesseries which are comprised of two or more species based on the dominant extra-frameworkcation present. All members of a series have the same root name but are distinguished by asuffix consisting of a hyphen and the chemical symbol of the extra-framework cation. Notethat this zeolite suffix differs from the Levinson-type suffix in that the latter consists of ahyphen followed by a chemical symbol (or symbols) enclosed in parentheses (i.e., brackets).Species are listed in bold face and series names are given in ordinary type. Note that two ofthe species, pahasapaite and weinebeneite, are beryllophosphates rather than silicates.

Amicite K4Na4[Al8Si8O32]⋅10H2O, mon.Ammonioleucite (NH4)[AlSi2O6], tet.Analcime Na[AlSi2O6]⋅H2O, cub., tet., trig., orth., mon., and tric.Barrerite Na2[Al2Si7O18]⋅6H2O, orth.Bellbergite (K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al18Si18O72]⋅30H2O, hex.Bikitaite Li[AlSi2O6]⋅H2O, mon. and tric.Boggsite Ca8Na3[Al19Si77O192]⋅70H2O, orth.Brewsterite (series) (Sr,Ba)2[Al4Si12O32]⋅10H2O, mon. Brewsterite-Ba (Ba,Sr)2[Al4Si12O32]⋅10H2O, mon. Brewsterite-Sr (Sr,Ba)2[Al4Si12O32]⋅10H2O, mon.Chabazite (series) (Ca0.5,Na,K)4[Al4Si8O24]⋅12H2O, trig. and tric. Chabazite-Ca (Ca0.5,K,Na)4[Al4Si8O24]⋅12H2O, trig. Chabazite-K (K,Na,Ca0.5)4[Al4Si8O24]⋅12H2O, trig. Chabazite-Na (Na,K,Ca0.5)4[Al4Si8O24]⋅12H2O, trig.Chiavennite CaMn[Be2Si5O13(OH)2]⋅2H2O, orth.Clinoptilolite (series) (Na,K,Ca0.5,Sr0.5,Ba0.5,Mg0.5)6[Al6Si30O72]⋅~20H2O, mon. Clinoptilolite-Ca (Ca0.5,Na,K)6[Al6Si30O72]⋅~20H2O, mon. Clinoptilolite-K (K,Na)6[Al6Si30O72]⋅~20H2O, mon. Clinoptilolite-Na (Na,K,Ca0.5)6[Al6Si30O72]⋅~20H2O, mon.Cowlesite Ca[Al2Si3O10]⋅5.3H2O, orth.Dachiardite (series) (Ca0.5,Na,K)4–5[Al4–5Si20–19O48]⋅~13H2O, mon. Dachiardite-Ca (Ca0.5,K,Na)4–5[Al4–5Si20–19O48]⋅~13H2O, mon. Dachiardite-Na (Na,K,Ca0.5)4–5[Al4–5Si20–19O48]⋅~13H2O, mon.

Edingtonite Ba[Al2Si3O10]⋅4H2O, orth. and tet.Epistilbite (Ca,Na2)[Al2Si4O12]⋅4H2O, mon. and tric.Erionite (series) (K,Na,Ca0.5)10[Al10Si26O72]⋅~30H2O, hex. Erionite-Ca (Ca0.5,K,Na)10[Al10Si26O72]⋅~30H2O, hex. Erionite-K (K,Na,Ca0.5)10[Al10Si26O72]⋅~30H2O, hex. Erionite-Na (Na,K,Ca0.5)10[Al10Si26O72]⋅~30H2O, hex.Faujasite (series) (Na,Ca0.5,Mg0.5,K)3–4[Al3–4Si9–8O24]⋅16H2O, cub. Faujasite-Ca (Ca0.5,Na,Mg0.5,K)3–4[Al3–4Si9–8O24]⋅16H2O, cub. Faujasite-Mg (Mg0.5,Ca0.5,Na,K)3–4[Al3–4Si9–8O24]⋅16H2O, cub. Faujasite-Na (Na,Ca0.5,Mg0.5,K)3–4[Al3–4Si9–8O24]⋅16H2O, cub.Ferrierite (series) (K,Na,Mg0.5,Ca0.5)6[Al6Si30O72]⋅18H2O, orth. and mon. Ferrierite-K (K,Na,Mg0.5,Ca0.5)6[Al6Si30O72]⋅18H2O, orth. Ferrierite-Mg (Mg0.5,K,Na,Ca0.5)6[Al6Si30O72]⋅18H2O, orth. Ferrierite-Na (Na,K,Mg0.5,Ca0.5)6[Al6Si30O72]⋅18H2O, mon.Garronite NaCa2.5[Al6Si10]O32⋅14H2O, tet. and orth.Gaultite Na4[Zn2Si7O18]⋅5H2O, orth.Gismondine Ca[Al2Si2O8]⋅4.5H2O, mon.Gmelinite (series) (Na,Ca0.5,K,Sr0.5)8[Al8Si16O48]⋅22H2O, hex. Gmelinite-Ca (Ca0.5,Sr0.5,Na,K)4[Al8Si16O48]⋅22H2O, hex. Gmelinite-K (K,Ca0.5,Sr0.5,Na)4[Al8Si16O48]⋅22H2O, hex. Gmelinite-Na (Na,K,Ca0.5)4[Al8Si16O48]⋅22H2O, hex.Gobbinsite Na5[Al5Si11O32]⋅12H2O, orth.Gonnardite (Na,Ca)6–8[(Al,Si)20O40]⋅12H2O, tet.Goosecreekite Ca[Al2Si6O16]⋅5H2O, mon.Gottardiite Na3Mg3Ca5[Al19Si117O272]⋅93H2O, orth.Harmotome (Ba0.5,Ca0.5,K,Na)5[Al5Si11O32]⋅12H2O, mon.Heulandite (series) (Ca0.5,Sr0.5,Ba0.5,Mg0.5,Na,K,)9[Al9Si27O72]⋅~24H2O, mon. Heulandite-Ca (Ca0.5,Na,K)9[Al9Si27O72]⋅~24H2O, mon. Heulandite-K (K,Ca0.5,Na,Mg0.5,Sr0.5)9[Al9Si27O72]⋅~24H2O, mon. Heulandite-Na (Na,Ca0.5,K)9[Al9Si27O72]⋅~24H2O, mon. Heulandite-Sr (Sr0.5,Ca0.5,Na,K)9[Al9Si27O72]⋅~24H2O, mon.Hsianghualite Li2Ca3[Be3Si3O12]F2, cub.Kalborsite K6[Al4Si6O20]B(OH)4Cl, tet.Laumontite Ca4[Al8Si16O48]⋅18H2O, mon.Leucite K[AlSi2O6], tet.Levyne (series) (Ca0.5,Na,K)6[Al6Si12O36]⋅~17H2O, trig. Levyne-Ca (Ca0.5,Na,K)6[Al6Si12O36]⋅~17H2O, trig. Levyne-Na (Na,Ca0.5,K)6[Al6Si12O36]⋅~17H2O, trig.Lovdarite K4Na12[Be8Si28O72]⋅18H2O, orth.Maricopaite (Pb7Ca2)[Al12Si36(O,OH)100]⋅n(H2O,OH), n , 32, orth.Mazzite (Mg2.5K2Ca1.5)[Al10Si26O72]⋅30H2O, hex.Merlinoite K5Ca2[Al9Si23O64]⋅22H2O, orth.Mesolite Na16Ca16[Al48Si72O240]⋅64H2O, orth.

Montesommaite K9[Al9Si23O64]⋅10H2O, orth.Mordenite (Na2,Ca,K2)4[Al8Si40O96]⋅28H2O, orth.Mutinaite Na3Ca4[Al11Si85O192]⋅60H2O, orth.Natrolite Na2[Al2Si3O10]⋅2H2O, orth.Offr_tite CaKMg[Al5Si13O36]⋅16H2O, hex.Pahasapaite (Ca5.5Li3.6K1.2Na0.2h13.5)Li8[Be24P24O96]⋅38H2O, cub.Parth_ite Ca2[Al4Si4O15(OH)2]⋅4H2O, mon.Paulingite (series) (K,Ca0.5,Na,Ba0.5)10[Al10Si32O84]⋅27–44H2O, cub. Paulingite-Ca (Ca0.5,K,Na)10[Al10Si32O84]⋅27–44H2O, cub. Paulingite-K (K,Ca0.5,Na)10[Al10Si32O84]⋅27–44H2O, cub.Perlialite K9Na(Ca,Sr)[Al12Si24O72]⋅15H2O, hex.Phillipsite (series) (K,Na,Ca0.5,Ba0.5)4–7[Al4–7Si12–9O32]⋅12H2O, mon. Phillipsite-Ca (Ca0.5,K,Na,Ba0.5)4–7[Al4–7Si12–9O32]⋅12H2O, mon. Phillipsite-K (K,Na,Ca0.5,Ba0.5)4–7[Al4–7Si12–9O32]⋅12H2O, mon. Phillipsite-Na (Na,K,Ca0.5,Ba0.5)4–7[Al4–7Si12–9O32]⋅12H2O, mon.Pollucite (Cs,Na)[AlSi2O6]⋅nH2O, where (Cs + n) = 1, cub.Roggianite Ca2[Be(OH)2Al2Si4O13]⋅<2.5H2O, tet.Scolecite Ca[Al2Si3O10]⋅3H2O, mon.Stellerite Ca[Al2Si7O18]⋅7H2O, orth.Stilbite (series) (Ca0.5,Na,K)9[Al9Si27O72]⋅28H2O, mon. Stilbite-Ca (Ca0.5,Na,K)9[Al9Si27O72]⋅28H2O, mon. Stilbite-Na (Na,Ca0.5,K)9[Al9Si27O72]⋅28H2O, mon.Terranovaite NaCa[Al3Si17O40]⋅>7H2O, orth.Thomsonite Ca2Na[Al5Si5O20]⋅6H20, orth.Tschernichite Ca[Al2Si6O16]⋅~8H2O, tet.Tsch_rtnerite Ca4(K,Ca,Sr,Ba)3Cu3(OH)8[Al12Si12O48]⋅nH2O, n ~ 20, cub.Wairakite Ca[Al2Si4O12]⋅2H2O, mon. and tet.Weinebeneite Ca[Be3(PO4)2(OH)2]⋅4H2O, mon.Willhendersonite K0–1Ca1.5–1.0[Al3Si3O12]⋅5H2O, tric.Yugawaralite Ca[Al2Si6O16]⋅4H2O, mon. and tric.

Tvedalite may be structurally related to Chiavennite, but a structural study is required.Paranatrolite is considered a doubtful species and requires further study.